Claude Opus 5.5
NEWAnthropic · Proprietary · Released Sep 22, 2026 · anthropic/claude-opus-5.5
Best $4.00 in / $20.00 out via Anthropic
1M contextVisionToolsReasoningStructured outputPrompt caching
Available from 13 providersUSD / MTOK · PRICES 3 HOURS AGO · SPEED 3 HOURS AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
 CheaperInferenceDIRECTMARKETPLACE | $2.80 | $14.00 | — | — | — | — | — | — |
| CheaperInferenceDIRECTMARKETPLACE | $3.00 | $15.00 | — | — | — | — | — | — |
 Anthropic1ST PARTY | $4.00 | $20.00 | $0.20 | 1M | — | 5.8s | — | 100.0% |
 Amazon Bedrock | $4.00 | $20.00 | $0.20 | 1M | — | — | — | 99.9% |
 Azure | $4.00 | $20.00 | $0.20 | 1M | — | 3.7s | 216 tok/s | 100.0% |
 Google | $4.00 | $20.00 | $0.20 | 1M | — | 3.9s | 164 tok/s | 100.0% |
 Claude Platform on AWS | $4.00 | $20.00 | $0.20 | 1M | — | — | — | 100.0% |
| Amazon Bedrock | $4.40 | $22.00 | $0.22 | 1M | — | — | — | 100.0% |
| Amazon Bedrock | $4.40 | $22.00 | $0.22 | 1M | — | — | — | 100.0% |
| Azure | $4.40 | $22.00 | $0.22 | 1M | — | — | — | 100.0% |
| Google | $4.40 | $22.00 | $0.22 | 1M | — | — | — | 100.0% |
| Google | $4.40 | $22.00 | $0.22 | 1M | — | — | — | 100.0% |
| AnthropicPRIORITY1ST PARTY | $8.00 | $40.00 | $0.40 | 1M | — | — | — | 100.0% |
TTFT/TPS: median (P50) over trailing 504h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · methodology v1.1 · measured 3 hours ago
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Pricing variants · USD / MTok in / out
STANDARD
$4.00 / $20.00
per MTok in / out
BATCH
$2.00 / $10.00
async batch
CACHE READ $0.20CACHE WRITE $5.00WEB SEARCH $0.01 / searchCACHE WRITE 1H $8.00 / MTok
Recent changesRSS ↗
Sep 23, 2026endpoint added · cheaperinference11 → 13
Sep 23, 2026model added
About
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Specifications
Context window1,000,000
Max output128,000
Modalities intext, image, file
Modalities outtext
LicenseProprietary
ReleasedSep 22, 2026
TokenizerClaude
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[](https://modelindex.ai/models/anthropic/claude-opus-5.5)Sources
OpenRouter API3 hours ago
AGGREGATORModelIndex benchmarks3 hours ago
MEASUREDVerified 3 hours ago · list prices, not negotiated rates.