GPT-5.5 (xhigh)
deprecated by benchmark source★ featuredTop 5 cheapest providers (Adjusted $/task)
Within the active global provider, residency and confidentiality filters.
| # | Provider | Platform | Raw input $/1M | Raw output $/1M | Adjusted $/task |
|---|---|---|---|---|---|
| 1 | Azure AI Foundry | Azure AI Foundry | $5.00 | $30.00 | |
| 2 | Azure | OpenRouter | $5.00 | $30.00 | |
| 3 | OpenAI | OpenRouter | $5.00 | $30.00 | |
| 4 | AWS Bedrock | AWS Bedrock | $5.50 | $33.00 | |
| 5 | Amazon Bedrock | OpenRouter | $5.50 | $33.00 |
Benchmarks
MODEL EVIDENCE
Benchmark sheet
24 / 73 registered benchmark versions covered · 26 observations including existing index snapshots.
Composite retains Coding Agent v1.4 · source 2026-09-09
The five Composite inputs remain unchanged. Its Coding Agent input is the median across complete harness results in the retained v1.4 snapshot from 2026-09-09. Artificial Analysis now publishes v1.5, with different components. Explore current v1.5 separately. Dated snapshot labels on other indices identify unversioned source captures, not a verified semantic version.
Profile signals
1 threshold-crossing signal flagged · 24 eligible benchmark families
How flags are calculated
Heuristic screen, not statistical significance: benchmark families are correlated and source uncertainty is unknown. Peer evidence needs ≥ 20 independently measured matched configurations from ≥ 10 distinct model families. A flag needs a directed population z-score of magnitude ≥ 1.5 and a gap of ≥ 1.5 from the leave-one-benchmark-family-out mean z in the same direction, over ≥ 5 other benchmark families.
- unusually strong CritPt (AA) snapshot-2026-09-10
Why
Observed: 0.27143 fractionPeer mean 0.03942 · peer sd 0.0762 · n 521 · families 367Directed z 3.045 · baseline z 1.18 · gap 1.865 · profile n 230.27143 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗Evidence
Axis: CritPt (AA) · snapshot-2026-09-10 · Published boardExact value:0.271428571428571fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recordedObservation id:aa:1f054429-397e-4fdb-9e71-67bc92c1735e:critpt
Protocol-compatible measured/vendor divergences
No verified protocol-compatible vendor/measured pair is available for this model; agreement cannot be assessed.
Agentic
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| AA-AnalystAgent Version snapshot-2026-09-10 | Published board Tests analyst tasks using agentic Python execution across fourteen domains. | 0.5 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AA-AnalystAgent · snapshot-2026-09-10 · Published board Exact value: 0.5 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:analystAgent |
| APEX-Agents-AA Version snapshot-2026-09-10 | Published board Tests professional-service tasks that require agents to produce locally graded deliverables. | 0.37684 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: APEX-Agents-AA · snapshot-2026-09-10 · Published board Exact value: 0.376843657817109 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:apexAgents |
| AA-Briefcase Version snapshot-2026-09-10 | Published board Tests multi-week professional knowledge-work projects with linked tasks and large source collections. | 1135.79 Elomeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AA-Briefcase · snapshot-2026-09-10 · Published board Exact value: 1135.79 EloObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:briefcaseBreakdown.overall.elo |
| GDPval-AA v2 Version 2 | Published board Tests professional knowledge-work deliverables across occupations using AA's Stirrup harness. | 1395.85 Elomeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: GDPval-AA v2 · 2 · Published board Exact value: 1395.85 EloObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:gdpval |
| Harvey LAB-AA Version snapshot-2026-09-10 | Published board Tests legal-work deliverables across practice areas on Harvey's private task set. | 0.86279 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: Harvey LAB-AA · snapshot-2026-09-10 · Published board Exact value: 0.862787668258793 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:harveyLab |
| ITBench-AA Version snapshot-2026-09-10 | Published board Tests root-cause diagnosis from offline Kubernetes incident snapshots. | 0.4581 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: ITBench-AA · snapshot-2026-09-10 · Published board Exact value: 0.458097928436911 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:itBenchSre |
| Terminal-Bench Hard (AA) Version 74221fb | Published board Tests a pinned 44-task hard subset of terminal-based work using Terminus 2. | 0.60606 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: Terminal-Bench Hard (AA) · 74221fb · Published board Exact value: 0.606060606060606 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:terminalbenchHard |
| Terminal-Bench v2.1 (AA) Version 2.1 | Published board Tests terminal-based work on the 89-task verified refresh using Terminus 2. | 0.8427 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: Terminal-Bench v2.1 (AA) · 2.1 · Published board Exact value: 0.842696629213483 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:terminalbenchV21 |
| Terminal-Bench v4.0 (AA) Version 4.0 | Published board Tests terminal-based work on the 66-task release using mini-SWE-agent v2.4.6. | 0.14646 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: Terminal-Bench v4.0 (AA) · 4.0 · Published board Exact value: 0.146464646464646 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:terminalbenchV40 |
Coding
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| Artificial Analysis Coding Agent Index v1.4 Version 1.4 | Codex The retained AA Coding Agent Index measures coding-agent systems using the earlier three-component implementation. | 0.61033 fractionmeasuredobserved 2026-09-09artificialanalysis.ai ↗ EvidenceAxis: Artificial Analysis Coding Agent Index v1.4 · 1.4 · Codex Exact value: 0.6103327520587847 fractionObserved: 2026-09-09 · publication date: not recorded Observation id: aa-coding:1.4:53Source: https://artificialanalysis.ai/ |
| SciCode (AA subproblems) Version 1.0.1 | Published board Tests scientific Python programming with scientist-annotated background information. | 0.55787 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: SciCode (AA subproblems) · 1.0.1 · Published board Exact value: 0.55787037037037 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:scicode |
| AA Coding Index Version snapshot-2026-09-10 (unversioned) | Published board Published AA index from the retained API snapshot. No verified semantic version was supplied. | 74.9 pointsmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AA Coding Index · snapshot-2026-09-10 (unversioned) · Published board Exact value: 74.9 pointsObserved: 2026-09-10 · publication date: not recorded Observation id: legacy:aa_coding_index:gpt-5.5::xhighProtocol: inspect · file data/raw/artificialanalysis.json |
Instruction-following
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| IFBench (AA single-turn) Version snapshot-2026-09-10 | Published board Tests precise single-turn instructions with deterministic rule checks. | 0.7585 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: IFBench (AA single-turn) · snapshot-2026-09-10 · Published board Exact value: 0.758503401360544 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:ifbench |
Knowledge
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| Humanity's Last Exam (AA text-only) Version snapshot-2026-09-10 | Published board Tests expert-level knowledge on AA's text-only Humanity's Last Exam subset. | 0.45783 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: Humanity's Last Exam (AA text-only) · snapshot-2026-09-10 · Published board Exact value: 0.457831325301205 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:hle |
| AA-Omniscience Index Version snapshot-2026-09-10 | Published board Tests factual reliability while rewarding correct answers and penalizing hallucinations. | 20.51667 pointsmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AA-Omniscience Index · snapshot-2026-09-10 · Published board Exact value: 20.5166666666667 pointsObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:omniscience |
Long-context
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| GDP.pdf (AA) Version snapshot-2026-09-10 | Published board Tests professional reasoning over long PDFs with AA document preparation and grading. | 0.212 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: GDP.pdf (AA) · snapshot-2026-09-10 · Published board Exact value: 0.212 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:gdpPdfAllPass |
| AA-LCR v1.1 Version 1.1 | Published board Tests reasoning across multiple long documents with corrected answer keys and grading. | 0.84333 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AA-LCR v1.1 · 1.1 · Published board Exact value: 0.843333333333333 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:lcr |
| MLCR-AA Version snapshot-2026-09-10 | Published board Tests medical-record synthesis and reasoning across long, fragmented case documents. | 0.17778 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: MLCR-AA · snapshot-2026-09-10 · Published board Exact value: 0.177777777777778 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:mlcrOverall |
Reasoning
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| AA Intelligence Index Version snapshot-2026-09-10 (unversioned) | Published board Published AA index from the retained API snapshot. No verified semantic version was supplied. | 38.6 pointsmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AA Intelligence Index · snapshot-2026-09-10 (unversioned) · Published board Exact value: 38.6 pointsObserved: 2026-09-10 · publication date: not recorded Observation id: legacy:aa_intelligence_index:gpt-5.5::xhighProtocol: inspect · file data/raw/artificialanalysis.json |
Science
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| CritPt (AA) Version snapshot-2026-09-10 | Published board Tests research-level physics reasoning with Python, symbolic and numerical answers. | 0.27143 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: CritPt (AA) · snapshot-2026-09-10 · Published board Exact value: 0.271428571428571 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:critpt |
| GPQA Diamond (AA) Version snapshot-2026-09-10 | Published board Tests graduate-level biology, physics and chemistry knowledge on the Diamond subset. | 0.93535 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: GPQA Diamond (AA) · snapshot-2026-09-10 · Published board Exact value: 0.935353535353535 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:gpqa |
Tool-use
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| AutomationBench-AA Version 1.0.6 | Published board Tests multi-app SaaS workflows through REST tools on a held-out AutomationBench split. | 0.47301 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: AutomationBench-AA · 1.0.6 · Published board Exact value: 0.4730056587293313 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:automationBenchPartialScore |
| EnterpriseOps-Gym-AA Version snapshot-2026-09-10 | Published board Tests enterprise workflows through MCP tools against resettable application environments. | 0.46643 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: EnterpriseOps-Gym-AA · snapshot-2026-09-10 · Published board Exact value: 0.4664279319606088 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:enterpriseOpsGym |
| τ²-Bench Telecom (AA) Version snapshot-2026-09-10 | Published board Tests dual-control telecom agents that coordinate tool use with a simulated user. | 0.9386 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: τ²-Bench Telecom (AA) · snapshot-2026-09-10 · Published board Exact value: 0.93859649122807 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:tau2 |
| τ³-Banking (AA) Version 1.0.1 | Published board Tests banking support agents that retrieve policies and change account state through tools. | 0.38969 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: τ³-Banking (AA) · 1.0.1 · Published board Exact value: 0.389690721649485 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:tauBanking |
Vision
| Benchmark / version | Evaluation group | Score / provenance |
|---|---|---|
| MMMU Pro (AA) Version snapshot-2026-09-10 | Published board Tests multimodal understanding using challenging ten-option questions. | 0.79884 fractionmeasuredobserved 2026-09-10artificialanalysis.ai ↗ EvidenceAxis: MMMU Pro (AA) · snapshot-2026-09-10 · Published board Exact value: 0.798843930635838 fractionObserved: 2026-09-10T21:47:16.627Z · publication date: not recorded Observation id: aa:1f054429-397e-4fdb-9e71-67bc92c1735e:mmmuPro |
Missing coverage · 51 benchmark versions
No result does not mean a zero, or that the model was never tested. Collection failures and disputed versions retain their distinct status.
- AIME 2025 (AA) · 2025
Unknown: no published result matched to this configuration.
- Artificial Analysis Coding Agent Index v1.5 · 1.5
Unknown: no published result matched to this configuration.
- LiveCodeBench (AA historical field) · snapshot-2026-09-10
contested: Exact evaluation task window is unknown.
- Aider Polyglot · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- ARC-AGI-1 · 1
Unknown: no published result matched to this configuration.
- ARC-AGI-2 · 2
Unknown: no published result matched to this configuration.
- ARC-AGI-3 · 3
Unknown: no published result matched to this configuration.
- BuzzBench · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- CritPt · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- EQ-Bench 4 · 4
Unknown: no published result matched to this configuration.
- EQ-Bench Creative Writing v3 · 3
Unknown: no published result matched to this configuration.
- Judgemark v4 · 4
Unknown: no published result matched to this configuration.
- EQ-Bench Longform Creative Writing · v1.11
Unknown: no published result matched to this configuration.
- Slop Score · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- HELMET · snapshot-2026-09-10
manual required: Suite uses heterogeneous task/context metrics; no universal headline is published.
- Humanity's Last Exam (HLE) · snapshot-2026-09-10
manual required: README sample output is not attributable to a model and is not a current result.
- IFBench · snapshot-2026-09-10
manual required: Captured README specifies evaluation, not a named-model result.
- Japanese-RP-Bench (Aratako) · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- Japanese-RP-Bench v2 (tegnike fork) · 2
Unknown: no published result matched to this configuration.
- LiveBench · 2026-06-25
Unknown: no published result matched to this configuration.
- LongBench v2 · 2
Unknown: no published result matched to this configuration.
- LLM Creative Story-Writing Benchmark · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- LLM Divergent Thinking Creativity Benchmark · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- Elimination Game Benchmark · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- MMMU · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- OTIS Mock AIME 2024-2025 · 2024-2025
contested: Captured July-2025 result predates the registered exact-match grading protocol; withheld.
- PingPong English (unadjusted mean) · 2
Unknown: no published result matched to this configuration.
- RP-Bench Community Elo · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- RULER · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- SciCode · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- SimpleBench · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- The Slop Index · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- SlopBench · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- Spiral-Bench · 1.2
Unknown: no published result matched to this configuration.
- SWE-bench Multilingual · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- SWE-bench Multimodal · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- SWE-Bench Pro Public · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- SWE-bench Verified · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- τ²-bench · 2
Unknown: no published result matched to this configuration.
- τ³-Banking · 1.0.1
Unknown: no published result matched to this configuration.
- τ³-Voice · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- Terminal-Bench · 4.0
Unknown: no published result matched to this configuration.
- Towards AI Editorial Writing · snapshot-2026-09-10
manual required: Private protocol and visually reported X values require xplainervideo capture and primary evidence review.
- UGI NatInt · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- UGI Willingness · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- UGI Writing · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- UGI · snapshot-2026-09-10
Unknown: no published result matched to this configuration.
- Vending-Bench 2 · 2
Unknown: no published result matched to this configuration.
- WeirdML · 2
Unknown: no published result matched to this configuration.
- DesignArena Frontend · snapshot-2026-09-10 (unversioned)
Unknown: no published result matched to this configuration.
- DesignArena Full-Stack · snapshot-2026-09-10 (unversioned)
Unknown: no published result matched to this configuration.
Variants / reasoning settings
| Variant | Coding · snapshot 2026-09-10 | Intelligence · snapshot 2026-09-10 |
|---|---|---|
| GPT-5.5 (xhigh) | 74.9 | 38.6 |
| GPT-5.5 (high) | 71.6 | 37.3 |
| GPT-5.5 (medium) | 71.5 | 34.2 |
| GPT-5.5 (low) | 60.9 | 30.7 |
| GPT-5.5 (Non-reasoning) | 56.5 | 23.2 |
GitHub Copilot
Current usage-based billing · model token cost is converted to AI Credits at 1 credit = $0.01.
Legacy annual Pro/Pro+ request billing only.
Legacy annual-plan multiplier.
Token offers by platform — Adjusted $/task
Adjusted costs are modeled USD per task: AA output tokens × OpenRouter usage I/O (Chutes global fallback). These are general usage and benchmark proxies for coding-agent work. Missing AA data assumes 1,000 output tokens/task; unknown cache hit assumes 0%; unmeasured additional cache writes assume 0 tokens. Click any underlined price for exact inputs, dates and assumptions. Raw list prices use the selected fixed input/output blend, in USD per million tokens.
12 offers within the active global filters; “—” means the catalog is active but no public token price is available.
Azure AI Foundry (4)
| Azure AI Foundry | globalshort context | $5.00 raw in $/1M | $30.00 raw out $/1M | |
| Azure AI Foundry | eushort contextEU | $5.50 raw in $/1M | $33.00 raw out $/1M | |
| Azure AI Foundry | globallong context | $10.00 raw in $/1M | $45.00 raw out $/1M | |
| Azure AI Foundry | eulong contextEU | $11.00 raw in $/1M | $49.50 raw out $/1M |
OpenRouter (6)
| Azure | globalazure | $5.00 raw in $/1M | $30.00 raw out $/1M | |
| OpenAI | globalopenai | $5.00 raw in $/1M | $30.00 raw out $/1M | |
| Azure | globalazure/us | $5.50 raw in $/1M | $33.00 raw out $/1M | |
| Azure | euazure/euEU | $5.50 raw in $/1M | $33.00 raw out $/1M | |
| Amazon Bedrock | globalamazon-bedrock/us-east-1 | $5.50 raw in $/1M | $33.00 raw out $/1M | |
| OpenAI | globalopenai/fast | $12.50 raw in $/1M | $75.00 raw out $/1M |
AWS Bedrock (1)
| AWS Bedrock | us-east-1 | $5.50 raw in $/1M | $33.00 raw out $/1M |
T-Systems LLM Hub (1)
| T-Systems LLM Hub | euEU | $5.61 raw in $/1M | $33.67 raw out $/1M |