Claude 4 Sonnet (Reasoning)
AI model by Anthropic. Real-time pricing and benchmark data.
Benchmarks
Editorial Analysis
Profile. Claude 4 Sonnet (Reasoning) is a premium-tier model from Anthropic at $15.00/M output tokens. Benchmark scores (e.g. Coding Index 37.6) suggest it targets workloads where correctness matters more than cost — long-running agents, code generation at scale, and complex multi-step reasoning.
Cost model. For a workload of 1M input tokens + 100K output tokens, Claude 4 Sonnet (Reasoning) costs $4.50 per million input-equivalent requests. Multiply by your monthly request volume to project the bill, and compare against the speed/correctness profile above to decide if the trade-off is worth it for your workload.
Editorial summary generated from public pricing and benchmark data (Artificial Analysis API). All numbers are sourced — see the Artificial Analysis methodology for benchmark definitions. Last refreshed 2026-08-24.
Compare with similar models
| Model | Input | Output | Speed |
|---|---|---|---|
Claude 4 Sonnet (Reasoning)Current | $3.00 | $15.00 | — |
| GPT-5.4 (Non-reasoning) | $2.50 | $15.00 | 90 tok/s |
| Kimi K3 (low) | $3.00 | $15.00 | 36 tok/s |
| GPT-5.4 (low) | $2.50 | $15.00 | 99 tok/s |
| Grok 4 | $3.00 | $15.00 | — |
| Command-R+ (Apr '24) | $3.00 | $15.00 | — |