Model specification · Anthropic
Claude Sonnet 5
anthropic/claude-sonnet-5
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
SpecificationsReported values
- Context window
- 1M
- Maximum output
- 128K
- Architecture
- text+image+file->text
- Tokenizer
- Claude
- Knowledge cutoff
- —
- Moderated
- Yes
- Input modalities
- text image file
- Output modalities
- text
Full pricingUSD where reported
| Price | Standard |
|---|---|
| Input | $2.00 / M |
| Output | $10.00 / M |
Benchmark indexesReported indexes
- Intelligence
- 38.4
- Coding
- 71.5
- Agentic
- 44.3
- Design Arena Elo
- 1256
Example workload costsStandard pricing only
| Workload | Input / output | Cache share | Estimated cost |
|---|---|---|---|
| Quick check | 10K / 1K × 1 | 0% | $0.030 |
| Long analysis | 100K / 4K × 1 | 50% | $0.150 |
| Workday | 20K / 2K × 1,000 | 30% | $49.20 |
More from AnthropicAll Anthropic models
| Model | Context | Input / M | Output / M | Intel. |
|---|---|---|---|---|
| Claude Fable 5.1 | 1M | $10.00 | $50.00 | 53.4 |
| Claude Opus 5 | 1M | $5.00 | $25.00 | 50.7 |
| Claude Fable 5 | 1M | $10.00 | $50.00 | 49.7 |
| Claude Opus 4.8 | 1M | $5.00 | $25.00 | 42 |
| Claude Sonnet 4.6 | 1M | $3.00 | $15.00 | 30.5 |
| Claude Sonnet 4.5 | 1M | $3.00 | $15.00 | 21.2 |
| Claude Haiku 4.5 | 200K | $1.00 | $5.00 | 17.6 |