Anthropic: Claude Opus 4.1
The Anthropic model is designed for tasks that require complex reasoning and handling of multiple input types. It supports three input modalities: image, text, and file inputs, with a maximum context length of 200000 tokens. The model also offers tools and reasoning capabilities, but does not provide structured output. Those considering this model may want to shortlist it due to its broad range of supported tasks and modalities. However, its high price point should be taken into account: $15 per million input tokens and $75 per million output tokens. Its blended benchmark score is 29.8 across one independent benchmark, which is a decent standing but not exceptional considering the price. This model may be worth exploring for those who require specific capabilities or can justify the cost.
Benchmark results
Independent, published benchmarks. Blended score 29.8 across 1 benchmark, last refreshed 2026-09-10. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 30.6 |
- Model ID
- anthropic/claude-opus-4.1
- Vendor
- anthropic
- Released
- August 2025
- Tokenizer
- Claude
- Input Modalities
- image, text, file
- Output Modalities
- text
- Max Output
- 32,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- not supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $15.00/M input and $75.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.56 |
| Classify 1,000 customer emails | 500k in / 50k out | $11.25 |
| A month of a busy support chatbot | 5M in / 2M out | $225.00 |
Similar models
Anthropic: Claude Opus 4
Anthropic: Claude Fable 5.1
Anthropic: Claude Fable 5
Anthropic: Claude Opus 4.1 (batch)
Anthropic: Claude 3 Haiku
Anthropic: Claude Fable 5.1 (batch)
Quick answers
- How much does Anthropic: Claude Opus 4.1 cost?
- $15.00 per million input tokens and $75.00 per million output tokens.
- What is Anthropic: Claude Opus 4.1's context window?
- 200,000 tokens, roughly 300 pages of text in a single request.
- Does Anthropic: Claude Opus 4.1 support tool calling?
- It supports tool calling, a reasoning mode.
- Can Anthropic: Claude Opus 4.1 process images?
- Yes, it accepts image input.