anthropic / text-generation API-only released 2026-09-22

Claude Opus 5.5

Name: Claude Opus 5.5
Price: 4 USD
Author: anthropic

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...

Input / 1M

$4.00

Output / 1M

$20.00

Context

AA Intelligence

57.6

Closed weights — available only as a hosted API text + image + file → text View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24

$4.00

input / 1M

$20.00

output / 1M

$0.20

cached input / 1M

$24.00

1M in + 1M out

:batch variant $2.00 in · $10.00 out

Context window: 1,000,000 tokens
Max output: 128,000 tokens
Providers: 5
Cheapest provider: Amazon Bedrock · $4.00 / $20.00
Best throughput: —
AA Intelligence / Coding / Agentic: 57.6 / — / —

✓ Tool calling ✓ Reasoning ✓ Structured outputs ✓ Image input ✓ File input ✗ Audio input ✓ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)

Current: $4.00 input · $20.00 output per 1M tokens

Benchmarks

Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.

AA Intelligence Index: 57.6
AA Coding Index: —
AA Agentic Index: —

Design Arena

CategoryEloWin %Rank

blender3d 1269 58.2% #4

mobileapps 1310 62.2% #2

spreadsheet 1390 69.5% #2

webapps 1316 60.5% #2

3d 1467 64.2% #1

codecategories 1390 62% #1

dataviz 1399 64.9% #1

gamedev 1447 65.7% #1

svg 1327 52% #1

uicomponent 1379 63.5% #2

website 1331 57.2% #4

Providers

5 providers · per 1M tokens · last 30 min metrics

Provider	Quant	Context	Input	Output	Uptime	Tok/s
Amazon Bedrock	unknown	1M	$4.00	$20.00	100%	—
Anthropic	unknown	1M	$4.00	$20.00	100%	—
Azure	unknown	1M	$4.00	$20.00	100%	—
Claude Platform on AWS	unknown	1M	$4.00	$20.00	100%	—
Google	unknown	1M	$4.00	$20.00	100%	—
Amazon Bedrock	unknown	1M	$4.40	$22.00	100%	—
Amazon Bedrock	unknown	1M	$4.40	$22.00	100%	—
Azure	unknown	1M	$4.40	$22.00	—	—
Google	unknown	1M	$4.40	$22.00	—	—
Google	unknown	1M	$4.40	$22.00	100%	—
Anthropic	unknown	1M	$8.00	$40.00	100%	—

Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation: anthropic
Released on OpenRouter: 2026-09-22
Context window: 1,000,000 tokens
Max output: 128,000 tokens
Input: text, image, file
Output: text
Tokenizer: Claude
Moderated by provider: Yes
OpenRouter id: anthropic/claude-opus-5.5

Compare with

Popular comparisons

Claude Sonnet 5.5 $4.00 Kimi K3.1 Pro $4.00 Claude Fable 5.1 $20.00 Gemini 4 Argon $4.00 GPT-6 Astra $20.00 GPT-6.1 Sol $4.00 Claude Opus 5 $10.00 Claude Fable 5 $20.00

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Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.