0

Claude Opus 5

Publisher
Anthropic
Context
1M
Input
Output
Released
24 Jul 2026

Cite

Notes

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Attribution

Attribution policy →
Context
1M
Input
$5
/1M tok
Output
$25
/1M tok
Blended
$10
#450/ 469/1M · 3:1
Speed
52
#94/ 469tok/s
Cache read
$0.50
0.10x input
Cache write
$6.25
1.25x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reasoning effortIndexSpeed
Reasoning, max54.152 t/s
Reasoning, xhigh53.453 t/s
Reasoning, high52.050 t/s
Reasoning, medium49.551 t/s
Reasoning, low43.852 t/s

Intelligence Index per reasoning-effort setting, via Artificial Analysis · pricing identical across tiers

Reported on 18 evals across 10 domains - best 99.0% on ProofBench · #2 of 59

Reported eval scores

18
CorpFin v273.2
MortgageTax72.1
Finance Agent (v2)58.6
TaxEval v275.1
EQ-Bench Longform Creative Writing86.3
Creative Story-Writing Benchmark95
EQ-Bench Creative Writing v32120.6
MedCode63.6
MedScribe91
EQ-Bench 41385
Humanity's Last Exam (HLE)54.9
Vals Index67.2
ProofBench99
GPQA Diamond93.2
SciCode48
Vals Multimodal Index73.9
Vibe Code Bench v1.188.4
SAGE49.4