Claude Opus 4.1 (latest)

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for tasks involving research, data analysis, and tool-assisted reasoning.

anthropic/claude-opus-4-1

Organization: Anthropic
Family: claude-opus
Providers: 7
Context: 200,000
Output limit: 32,000
Knowledge: 2025-03-31
Release: 2025-08-05
Updated: 2025-08-05
Weights: Closed
Input: text, image, pdf
Output: text
Capabilities: Tools, Reasoning, Temperature

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

11 offers · USD per million tokens

Provider	Model ID	Context	Output	Input / output · 1M	Reasoning	Tools	Structured	Details
Databricks	databricks-claude-opus-4-1	200,000	32,000	$15.00 / $75.00	Yes	Yes	—	View
Kilo Gateway	anthropic/claude-opus-4.1	200,000	32,000	$15.00 / $75.00	Yes	Yes	No	View
NanoGPT	anthropic/claude-opus-4.1:thinking	200,000	32,000	$15.00 / $75.00	Yes	Yes	Yes	View
NanoGPT	anthropic/claude-opus-4.1:thinking:1024	200,000	32,000	$15.00 / $75.00	Yes	Yes	Yes	View
NanoGPT	anthropic/claude-opus-4.1:thinking:8192	200,000	32,000	$15.00 / $75.00	Yes	Yes	Yes	View
NanoGPT	anthropic/claude-opus-4.1:thinking:32768	200,000	32,000	$15.00 / $75.00	Yes	Yes	Yes	View
NanoGPT	anthropic/claude-opus-4.1	200,000	32,000	$15.00 / $75.00	No	Yes	Yes	View
Neon	claude-opus-4-1	200,000	32,000	$15.00 / $75.00	Yes	Yes	Yes	View
Amazon Bedrockvia OpenRouter	anthropic/claude-opus-4.1 unknown	200,000	32,000	$15.00 / $75.00	Yes	Yes	No	View
Pioneer	claude-opus-4-1	200,000	32,000	$15.00 / $75.00	Yes	Yes	—	View
Requesty	claude-opus-4-1	200,000	32,000	$15.00 / $75.00	Yes	Yes	Yes	View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens

Input from$15.00Per 1M input tokens

Output from$75.00Per 1M output tokens

Available offers11Across 7 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Endpoint price comparisonLatest observed snapshot · 1 lowest-priced configuration

InputOutput

Amazon Bedrockamazon-bedrock

$15.00$75.00

anthropic/claude-opus-4.1Observed Oct 4, 2026, 11:31 AM UTC

Input: $15.00
Output: $75.00
Cache read: $1.50
Cache write: $18.75
Cache write · 1 hour: $30.00

Additional fees and pricing conditions

web search: $0.01 / search

Hosting prices through OpenRouter All endpoints and cache rates

Endpoint	Input / 1M	Output / 1M	Cache read / 1M	Cache write / 1M
Amazon Bedrockamazon-bedrock	$15.00	$75.00	$1.50	$18.75

Each row is a hosting configuration. Open an offer in Providers for its full pricing conditions and additional fees. Endpoint observations may differ from the routing catalog's base price.

Performance

Review reported latency and output-throughput percentiles from the latest observed rolling window.

Latest 30-minute observation

Time to first token · milliseconds

Latency distributionRolling 30-minute snapshot · 1 endpoint

P50P75P90P99

Amazon Bedrockamazon-bedrock

3,273–12,365.76 ms

All latency percentiles 1 endpoints

Endpoint	P50	P75	P90	P99
Amazon Bedrockamazon-bedrock	3,273 ms	4,616 ms	11,135.2 ms	12,365.76 ms

Output throughput · tokens per second

Throughput distributionRolling 30-minute snapshot · 1 endpoint

P50P75P90P99

Amazon Bedrockamazon-bedrock

13–27.6 t/s

All throughput percentiles 1 endpoints

Endpoint	P50	P75	P90	P99
Amazon Bedrockamazon-bedrock	13 t/s	15 t/s	18.2 t/s	27.6 t/s

Percentiles describe the observed request distribution. These are snapshots of a rolling window, not a historical time series.

Uptime

Compare successful request rates across the latest 5-minute, 30-minute, and 24-hour observations.

Successful requests by window

Availability by endpointCurrent overlapping windows · 1 endpoint

Endpoint5 minutes30 minutes24 hours

Amazon Bedrockamazon-bedrockObserved Oct 4, 2026, 11:31 AM UTC

—

100%

Reported by OpenRouter at the time of collection; rate-limited requests are excluded. A dash means no measurement was reported. This is not a live availability check.

Benchmarks

Review attributed evaluation results on each source's original scale.

External evaluations

anthropic/claude-opus-4.1Observed Oct 4, 2026, 11:31 AM UTC

Design Arena	Category	Elo	Win rate	Rank
models	3d	1,168	51.9%	58
models	asciiart	1,178	51.5%	28
models	codecategories	1,177	55.8%	62
models	dataviz	1,174	56.4%	67
models	gamedev	1,184	58.4%	56
models	svg	1,151	60.8%	41
models	uicomponent	1,171	57.8%	65
models	website	1,183	55.3%	67

Sources: Artificial Analysis and Design Arena, via OpenRouter. Scores retain their original scales and are not OpenAI Suite ratings.

Detailed evaluations

Evaluation	Configuration	Source	Results	Details
models · codecategories	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,177 Elo	Details
models · asciiart	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,178 Elo	Details
models · 3d	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,156 Elo	Details
models · 3d	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,168 Elo	Details
models · uicomponent	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,162 Elo	Details
models · svg	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,109 Elo	Details
models · dataviz	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,174 Elo	Details
models · website	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,171 Elo	Details
models · uicomponent	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,171 Elo	Details
models · svg	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,151 Elo	Details
models · gamedev	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,184 Elo	Details
models · website	Claude Opus 4.1 (Thinking)anthropic/claude-4.1-opus-20250805	Design Arena	1,183 Elo	Details
models · dataviz	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,169 Elo	Details
models · codecategories	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,171 Elo	Details
models · gamedev	Claude Opus 4.1anthropic/claude-4.1-opus-20250805	Design Arena	1,176 Elo	Details

Sources: Artificial Analysis, Design Arena and OpenRouter. Evaluation configurations and scales differ; results are not interchangeable. Updated Oct 4, 2026.

Technical details & API

Explore specifications, supported parameters, reasoning controls, and API identifiers for each OpenRouter route.

Current route specifications

anthropic/claude-opus-4.1Observed Oct 4, 2026, 11:31 AM UTC

Context: 200,000
Maximum output: 32,000
Tokenizer: Claude
Input: image, text, file
Output: text
Moderation: Yes
Knowledge cutoff: 2025-01-31
Added to OpenRouter: 2025-08-05

Base URLhttps://openrouter.ai/api/v1

Model IDanthropic/claude-opus-4.1

Version IDanthropic/claude-4.1-opus-20250805

Reasoning

Required: No
Enabled by default: Not reported
Default effort: —
Supported efforts: —

Supported parameters

include_reasoning
max_tokens
reasoning
stop
temperature
tool_choice
tools
top_k
top_p

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does Claude Opus 4.1 (latest) cost?

Listed rates start at $15.00 per million input tokens and $75.00 per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer Claude Opus 4.1 (latest)?

There are 11 cataloged offers across 7 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 200,000 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Yes. Structured output: Not reported. Support can vary by endpoint.

Catalog history · 2 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

Sep 14, 2026 · 65e01427d41c
Sep 12, 2026 · c73cd2a7359e