Claude Opus 4.6

Anthropic·Operational·Released 2026-02-05textvision

Context1,000k

Max output128k

Input / 1M$5 ↗

Output / 1M$25 ↗

Cached in$0.5

Benchmarks19

Benchmarks

Cited public sources · rank is exact-benchmark, apples-to-apples

AIME 2026 (MathArena)

#6/2196.7% ↗

FrontierMath Tier 4 v2 (Epoch AI run)

#22/4426.8% ↗

FrontierMath Tiers 1-3 v2 (Epoch AI run)

#20/5966% ↗

GPQA Diamond (Epoch AI run)

#25/7790.5% ↗

OTIS Mock AIME 2024-2025 (Epoch AI run)

#24/7694.4% ↗

SimpleQA Verified (Epoch AI run)

#21/5347% ↗

SWE-bench Verified (Epoch AI run)

#3/2478.7% ↗

LMArena Elo

#1/621497.5 ↗

ARC-AGI-2 (Verified)

#3/768.8% ↗

GPQA Diamond

#18/7091.3% ↗

MCP Atlas

#6/959.5% ↗

MMMLU

#1/491.1% ↗

MMMU-Pro (no tools)

#5/673.9% ↗

MMMU-Pro (with tools)

#5/777.3% ↗

OSWorld-Verified

#8/1272.7% ↗

SWE-bench Verified

#4/4580.8% ↗

Tau2-bench Retail

#1/391.9% ↗

Tau2-bench Telecom

#1/799.3% ↗

Terminal-Bench 2.0

#3/1365.4% ↗

Compare

vs GPT-6 Astra vs GPT-5.6 Sol vs GPT-5.6 Terra vs GPT-5.6 Luna vs Claude Fable 5.1 vs Claude Opus 5 vs Claude Sonnet 5 vs Claude Haiku 4.5

More from Anthropic

Claude Fable 5.1 Claude Opus 5 Claude Sonnet 5 Claude Haiku 4.5 Claude Opus 4.8 Claude Opus 4.7

Access Claude Opus 4.6 and every other model through one endpoint with automatic failover: Respan gateway.