Anthropic: Claude Opus 4.5
Claude Opus 4.5 from Anthropic is an advanced AI model capable of handling text, file, and image inputs with a context length of up to 200,000 tokens, making it suitable for extensive analysis or generation tasks. It supports reasoning and tools integration, enhancing its utility in complex problem-solving scenarios; however, structured output support is not explicitly mentioned. For those seeking a robust model within a budget, Claude Opus 4.5 might be worth considering. With a blended benchmark score of 78.5 across two independent benchmarks and pricing at $5.0 per million input tokens and $25.0 per million output tokens, it offers competitive performance despite not yet supporting structured outputs or open weights.
Benchmark results
Independent, published benchmarks. Blended score 73.0 across 2 benchmarks, last refreshed 2026-07-25. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 57.3 |
| EQ-Bench | emotional understanding in dialogue | 76.8 |
- Model ID
- anthropic/claude-opus-4.5
- Vendor
- anthropic
- Released
- November 2025
- Tokenizer
- Claude
- Input Modalities
- file, image, text
- Output Modalities
- text
- Max Output
- 64,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $5.00/M input and $25.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.19 |
| Classify 1,000 customer emails | 500k in / 50k out | $3.75 |
| A month of a busy support chatbot | 5M in / 2M out | $75.00 |
Similar models
Claude Opus 5
Anthropic: Claude Opus 4.8
Anthropic: Claude Opus 4.7
Anthropic: Claude Opus 4.6
Anthropic: Claude 3 Haiku
Anthropic: Claude Sonnet 4
Quick answers
- How much does Anthropic: Claude Opus 4.5 cost?
- $5.00 per million input tokens and $25.00 per million output tokens.
- What is Anthropic: Claude Opus 4.5's context window?
- 200,000 tokens, roughly 300 pages of text in a single request.
- Does Anthropic: Claude Opus 4.5 support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Anthropic: Claude Opus 4.5 process images?
- Yes, it accepts image input.