Basis
Claude Opus 5.5
Limited on Reasoning — at $4.00/M input. Insufficient data on 9 of 10 axes.
Aliases:claude-opus-5-5claude-opus-5-5-lowclaude-opus-5-5-xhighclaude-opus-5-5-mediumclaude-opus-5-5-high+1 more
1 Limited9 Insufficient
CAPABILITY CLASSIFICATION10 axes
VS AXIS LEADER · BAR = 100 − DISTANCE · ROWS EXPAND TO THEIR EVIDENCE
PRICING1View Pricing →
| Provider | Model name | Input $/M | Output $/M | Effective | Current |
|---|---|---|---|---|---|
| direct ↗ | claude-opus-5-5-high | $4.00 | $20.00 | 2026-09-23 | ● |
RECEIPTS — ALL MEASURED BENCHMARKS37
| Benchmark | Score | Settings | Source | Verification | Methodology | Measured | Reference |
|---|---|---|---|---|---|---|---|
OSWorld 2.0 partial | 81.80 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 5h ago | view ↗ |
Terminal-Bench-Science 0.1 | 58.70 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 5h ago | view ↗ |
Humanity's Last Exam with tools | 67.70 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 5h ago | view ↗ |
GDPval-AA 2.1 GDPval-AA v2.1 | 1846.00 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 5h ago | view ↗ |
FrontierCode v1.1 (Main) | 54.40 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 5h ago | view ↗ |
Terminal-Bench 4.0 | 66.40 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 5h ago | view ↗ |
Anthropic ECI | 169.36 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
Biomedical image analysis | 0.71 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
De novo binder design (24h) | 0.83 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
Medicinal chemistry | 0.63 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
Morphology-to-molecule matching | 0.34 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
| 82.00 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ | |
| 93.10 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ | |
| 94.30 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ | |
HealthBench Professional (raw score) | 77.10 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
HealthBench (length-adjusted) | 60.60 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
HealthBench (raw score) | 68.10 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
GDPval-AA (xhigh effort) | 1820.00 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
ProgramBench | 91.20 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
DeepSWE v1.1 | 74.20 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
OSWorld 2.0 (strict) | 48.70 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
OSWorld 2.0 (partial) | 81.80 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
OfficeQA Pro | 67.70 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
OfficeQA | 78.90 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
OSWorld 2.0 (strict pass rate) | 48.70 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
OSWorld 2.0 (partial score) | 81.80 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
Toolathlon Verified Pass@3 | 82.40 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
Toolathlon Verified Pass@1 | 77.80 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
HealthBench Professional | 65.60 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
SWE-bench Multimodal | 61.40 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
| 93.90 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ | |
| 89.90 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ | |
AECI | 169.36 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
CoBench 2.1 | 55.80 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
FrontierCode | 54.60 | — | anthropic.comclaude-opus-5-5 | VENDOR | OTHER | 6h ago | view ↗ |
Artificial Analysis Intelligence Index | 58.00 | reasoning max | artificialanalysis.aiclaude-opus-5-5 | VERIFIED | OTHER | 6h ago | view ↗ |
| 81.50 | — | www-cdn.anthropic.comClaude%20Opus%205.5%20System%20Card | VENDOR | OTHER | 6h ago | view ↗ |
Verification: 37 scores · 1 independently verified · 36 vendor-reported. How these tiers are assigned
Comparisons — Claude Opus 5.5Δ THE DELTA
VSClaude Opus 5· ANTHROPIC40SHARED BENCHMARKSVSClaude Fable 5.1· ANTHROPIC33SHARED BENCHMARKSVSClaude Fable 5· ANTHROPIC21SHARED BENCHMARKSVSClaude Opus 4.8· ANTHROPIC19SHARED BENCHMARKSVSClaude Sonnet 5· ANTHROPIC19SHARED BENCHMARKS
+ 3 MORE CURATED MATCHUPS — ALL IN THE INDEX BELOW
The Anthropic lineClaude Opus 4.8Claude Opus 4.6Claude 3.5 SonnetClaude Opus 5Claude Sonnet 4.5Claude Fable 5ALL ANTHROPIC →