Claude Opus 4.1 pricing, context and benchmark
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks.
Everything that matters, in one table
Context, pricing, cache, modalities and tooling, from the model registry and Artificial Analysis.
| Model | Claude Opus 4.1 |
| Model ID | anthropic/claude-opus-4.1 |
| Provider | Anthropic |
| Release date | 5 August 2025 |
| Status | Generally available |
| Input context | 200,000 tokens |
| Output context | 32,000 tokens |
| Official input pricing | $15 per 1M tokens |
| Official output pricing | $75 per 1M tokens |
| Cache read pricing | $1.5 per 1M tokens |
| Market input pricing | $15 per 1M (cheapest route) |
| Market output pricing | $75 per 1M (cheapest route) |
| Reasoning tokens | Billed as output at $75 per 1M |
| Input modalities | image · text · file |
| Output modalities | text |
| Reasoning control | Yes, effort levels exposed |
| Tool support | Functions, tool choice, structured outputs |
| Tokenizer | Claude |
| Provider routes | 1 endpoint |
| Artificial Analysis index | Not published |
| Speed | Not published |
| Knowledge cutoff | Not publicly stated |
Input and output support
| Modality | Input | Output | Billed at |
|---|---|---|---|
| Text | ✓ yes | ✓ yes | $15 in |
| Image | ✓ yes | no | $15 in |
| Audio | no | no | not supported |
| Video | no | no | not supported |
| File (PDF) | ✓ yes | no | $15 in |
What is Claude Opus 4.1?
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...
Claude Opus 4.1 carries a 200K token window, uses the Claude tokenizer and is served by Anthropic. On Hoodgen it sits in the Reasoning tier of the model menu next to its siblings, so you can switch mid conversation without losing the thread.
Release and what changed from the previous version
This is the only release of Claude Opus 4.1 on OpenRouter, released 5 August 2025. The provider has not published a knowledge cutoff, so treat training data as recent but unconfirmed for very new events.
Features and capabilities
Thinking and reasoning capabilities
Claude Opus 4.1 can think before answering and exposes the effort level per request. Reasoning tokens bill as output at $75 per million, and the trace can be returned with include_reasoning.
| Level | First token | Cost per task | Best for |
|---|---|---|---|
| Measured | n/a | n/a | Artificial Analysis measures the default reasoning configuration |
| Low effort | Faster | Lower | Chat, autocomplete, classification |
| High effort | Slower | Higher | Debugging, planning, multi step agents |
What can you do with Claude Opus 4.1?
Prompt caching and how to cut the bill
Cached input bills at $1.5 per million instead of $15. Keep the system prompt and documents first and the changing question last, so every call hits the cache.
Claude Opus 4.1 pricing
Official pricing
- $1.5 cached input
- 200K context
- image, text, file input
- 1 route on OpenRouter
- What Hoodgen routes to first
- Same model, lower bill
Market pricing, every route
| Provider | Tier | Input | Output | Cache read | Uptime 24h |
|---|---|---|---|---|---|
| Amazon Bedrock | standard | $15 | $75 | $1.5 | n/a |
API pricing and cost calculator
| Rate | Per call | Total | Credits |
|---|---|---|---|
| Cheapest route | $0.2505 | $125.25 | 118988 |
| List price | $0.2505 | $125.25 | 118988 |
API and developer information
| Model ID | anthropic/claude-opus-4.1 |
| Endpoint | https://openrouter.ai/api/v1/chat/completions |
| Parameters | include_reasoning · max_tokens · reasoning · stop · temperature · tool_choice · tools · top_k · top_p |
| Streaming | Yes, server sent events |
| Modality string | text+image+file->text |
| Max prompt tokens | 200,000 |
| Max completion tokens | 32,000 |
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-opus-4.1",
"messages": [{ "role": "user", "content": "Summarise this document." }],
"max_tokens": 1024
}'Model limitations
| Text only output | It cannot generate images, audio or video. Pair it with an image model on Hoodgen when you need visuals. |
| Output cap | 32,000 tokens per request. Long deliverables have to be chunked. |
| Benchmarks not published | Artificial Analysis does not publish an Intelligence Index for this release, so no benchmark score is claimed here. |
| Knowledge cutoff | The provider does not state a fixed cutoff for every release. Verify very recent events against search. |
Claude Opus 4.1 vs other Anthropic models
| Model | Context | Input /1M | Output /1M | AA index | Released |
|---|---|---|---|---|---|
| Claude Opus 4.1 | 200K | $15 | $75 | n/a | 2025 |
| Claude Fable 5 | 1M | $10 | $50 | n/a | 2026 |
| Claude Fable 5.1 | 1M | $10 | $50 | 49 | Sep 2026 |
| Claude Fable 5.2 | 1M | $8 | $40 | n/a | 2026 |
| Claude Opus 4.5 | 200K | $5 | $25 | n/a | 2025 |
| Claude Opus 4.7 | 1M | $5 | $25 | n/a | 2026 |
Privacy and data policy
- On Hoodgen, prompts and attachments answer that request and stay in your conversation history so you can reopen it. They are not used to train models.
- Requests route through OpenRouter to Anthropic and are covered by that provider's API terms.
- Do not paste secrets or personal data you would not send to any hosted model.
Claude Opus 4.1 questions, answered
Start chatting with Claude Opus 4.1
Free to try on Hoodgen AI, with a live credit estimate before every send. No API key, no setup.