Claude Opus 4.5 (Reasoning)
Context 200K tokens
Top 5 cheapest providers (Adjusted $/task)
The same list price can give a different adjusted $/task (caching, token efficiency) — click a price for its inputs.
Within the active global provider, residency and confidentiality filters.
| # | Provider | Platform | Raw input $/1M | Raw output $/1M | Adjusted $/task |
|---|---|---|---|---|---|
| 1 | Azure | OpenRouter | $5.00 | $25.00 | |
| 2 | OpenRouter | $5.00 | $25.00 | ||
| 3 | Amazon Bedrock | OpenRouter | $5.00 | $25.00 | |
| 4 | Google Vertex AI | Google Vertex AI | $5.00 | $25.00 | |
| 5 | AWS Bedrock | AWS Bedrock | $5.50 | $27.50 |
Composite
5 of 7 inputs · 4 from the model family6 radar axes: DesignArena's two boards share one69.9
AA Coding —Coding Agent v1.4 —AA Intelligence 29.1AA Agentic —Epoch ECI 150.1Software ECI 152.7DesignArena 1174/1166
Radar: percentile among all models measured on each input; a gap means not measured.
Benchmark sheet
14 of 140 registered benchmark versions · bars show the percentile among all models measured on each benchmark.
- Epoch ECI · attached
- Software ECI · attached
- DesignArena Web Apps (agentic) · attached
- DesignArena Full-Stack · attached
Agentic
Terminal-Bench Hard (AA)9447.0%
Terminal-Bench Hard (AA) pinned revision 74221fb ↗ · Published board — Tests a pinned 44-task hard subset of terminal-based work using Terminus 2.
τ²-Bench Airline (OpenRouter run)9177.0%
τ²-Bench Airline (OpenRouter run) published 2026-09-15 ↗ · Published board — Multi-turn service agents making tool calls under strict policy constraints. (OpenRouter's own reproducible run, as published on openrouter.ai/benchmarks.)
Coding
DesignArena Web Apps (agentic)361,174 Elo
DesignArena Web Apps (agentic) published 2026-09-19 ↗ · Published board — Published Elo. Exact source attachment is retained; fewer than 200 battles excludes a row from radar normalization and anomaly peers.
DesignArena Full-Stack411,166 Elo
DesignArena Full-Stack published 2026-09-19 ↗ · Published board — Published Elo. Exact source attachment is retained; fewer than 200 battles excludes a row from radar normalization and anomaly peers.
Efficiency
GPQA Diamond (OpenRouter run) — measured cost per task0$0.84
GPQA Diamond (OpenRouter run) — measured cost per task published 2026-09-15 ↗ · Published board — Mean USD OpenRouter actually spent per task while running GPQA Diamond for this configuration.
τ²-Bench Airline (OpenRouter run) — measured cost per task4$0.53
τ²-Bench Airline (OpenRouter run) — measured cost per task published 2026-09-15 ↗ · Published board — Mean USD OpenRouter actually spent per task while running τ²-Bench Airline for this configuration.
Instruction-following
IFBench (AA single-turn)7058.0%
IFBench (AA single-turn) published 2026-09-10 ↗ · Published board — Tests precise single-turn instructions with deterministic rule checks.
Knowledge
Humanity's Last Exam (AA text-only)8230.1%
Humanity's Last Exam (AA text-only) published 2026-09-10 ↗ · Published board — Tests expert-level knowledge on AA's text-only Humanity's Last Exam subset.
AA-Omniscience Index9014.0
AA-Omniscience Index published 2026-09-10 ↗ · Published board — Tests factual reliability while rewarding correct answers and penalizing hallucinations.
Long-context
AA-LCR v1.18277.3%
AA-LCR v1.1 v1.1 ↗ · Published board — Tests reasoning across multiple long documents with corrected answer keys and grading.
Math
AIME 2025 (AA) v20259391.3%
AIME 2025 (AA) v2025 ↗ · Published board — Advanced mathematical problem solving on AIME I and II 2025.
Reasoning
AA Intelligence Index8629.1
AA Intelligence Index published 2026-09-19 ↗ · Published board — Artificial Analysis publishes this board without a version number; we keep the date each result was retained.
Science
CritPt (AA)774.6%
CritPt (AA) published 2026-09-10 ↗ · Published board — Tests research-level physics reasoning with Python, symbolic and numerical answers.
GPQA Diamond (AA)8186.6%
GPQA Diamond (AA) published 2026-09-10 ↗ · Published board — Tests graduate-level biology, physics and chemistry knowledge on the Diamond subset.
GPQA Diamond (OpenRouter run)8086.5%
GPQA Diamond (OpenRouter run) published 2026-09-15 ↗ · Published board — Graduate-level science questions that resist retrieval and reward careful reasoning. (OpenRouter's own reproducible run, as published on openrouter.ai/benchmarks.)
Tool-use
τ²-Bench Telecom (AA)8489.5%
τ²-Bench Telecom (AA) published 2026-09-10 ↗ · Published board — Tests dual-control telecom agents that coordinate tool use with a simulated user.
Vision
MMMU Pro (AA)6674.0%
MMMU Pro (AA) published 2026-09-10 ↗ · Published board — Tests multimodal understanding using challenging ten-option questions.
Unusual results
2 threshold-crossing signals flagged · 17 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 weak GPQA Diamond (OpenRouter run) — measured cost per task published 2026-09-15
Why
Observed: 0.84288 USDPeer mean 0.07408 · peer sd 0.13073 · n 124 · families 124Directed z -5.881 · baseline z 0.671 · gap -6.552 · profile n 160.84288 USDmeasured· 1188 tasksobserved 2026-09-15openrouter.ai ↗Evidence
Axis: GPQA Diamond (OpenRouter run) — measured cost per task · published 2026-09-15 · Published boardExact value:0.8428752398989899USDTasks evaluated: 1188Observed: 2026-09-15T23:29:03.209Z · publication date: not recordedObservation id:openrouter-cost:anthropic/claude-4.5-opus-20251124|gpqa_diamondSource: https://openrouter.ai/benchmarks - unusually weak τ²-Bench Airline (OpenRouter run) — measured cost per task published 2026-09-15
Why
Observed: 0.53354 USDPeer mean 0.14769 · peer sd 0.2495 · n 118 · families 118Directed z -1.546 · baseline z 0.4 · gap -1.946 · profile n 160.53354 USDmeasured· 300 tasksobserved 2026-09-15openrouter.ai ↗Evidence
Axis: τ²-Bench Airline (OpenRouter run) — measured cost per task · published 2026-09-15 · Published boardExact value:0.5335405666666666USDTasks evaluated: 300Observed: 2026-09-15T23:29:03.209Z · publication date: not recordedObservation id:openrouter-cost:anthropic/claude-4.5-opus-20251124|tau_bench_verified_airlineSource: https://openrouter.ai/benchmarks
Missing coverage · 128 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.
Variants / reasoning settings
Artificial Analysis snapshot 2026-09-19 · Data: Artificial Analysis · Data: Epoch AI (CC BY)
| Variant | AA Coding | AA Intelligence |
|---|---|---|
| Claude Opus 4.5 (Reasoning) | — | 29.1 |
| Claude Opus 4.5 (Non-reasoning) | — | 23.7 |
Token offers by platform · 7 offers (Adjusted $/task)
Click any underlined price to see how it is estimated and where each input comes from. How we calculate adjusted cost.
7 offers within the active global filters; “—” means the catalog is active but no public token price is available.
OpenRouter (4)
| Azure | globalazure/global | $5.00 raw in $/1M | $25.00 raw out $/1M | |
| globalgoogle-vertex/global | $5.00 raw in $/1M | $25.00 raw out $/1M | ||
| Amazon Bedrock | globalamazon-bedrock | $5.00 raw in $/1M | $25.00 raw out $/1M | |
| Amazon Bedrock | euamazon-bedrock/eu-west-1EU | $5.50 raw in $/1M | $27.50 raw out $/1M |
Google Vertex AI (2)
| Google Vertex AI | global | $5.00 raw in $/1M | $25.00 raw out $/1M | |
| Google Vertex AI | europe-west1EU | $5.50 raw in $/1M | $27.50 raw out $/1M |
AWS Bedrock (1)
| AWS Bedrock | eu-central-1 (EU cross-region inference profile)EU | $5.50 raw in $/1M | $27.50 raw out $/1M |