Opus 5, Sonnet 5, and Haiku 4.5 side-by-side. Find the right model for your use case with detailed feature comparison and transparent pricing.
Detailed side-by-side comparison of Claude Opus 5, Claude Sonnet 5, and Claude Haiku 4.5.
| Feature | Claude Opus 5 | Claude Sonnet 5 | Claude Haiku 4.5 |
|---|---|---|---|
| Description | For complex agentic coding and enterprise work | The best combination of speed and intelligence | The fastest model with near-frontier intelligence |
| Model ID | claude-opus-5 |
claude-sonnet-5 |
claude-haiku-4-5-20251001 |
| Context Window | 1M tokens | 1M tokens | 200k tokens |
| Max Output | 128k tokens | 128k tokens | 64k tokens |
| Latency | Moderate | Fast | Fastest |
| Knowledge Cutoff | May 2026 | Jan 2026 | Feb 2025 |
| Adaptive Thinking | ✓ Yes | ✓ Yes | ✗ No |
| Extended Thinking | ✗ No | ✗ No | ✓ Yes |
| Best For | Complex tasks, agentic systems, enterprise | General purpose, production workloads | Speed-critical applications, mobile |
Transparent pricing for all three models. Costs shown per million tokens. Batch API offers 50% discount on both input and output.
| Model | Base Input | Base Output | Batch Input | Batch Output |
|---|---|---|---|---|
| Claude Opus 5 | $5 / MTok | $25 / MTok | $2.50 / MTok | $12.50 / MTok |
| Claude Sonnet 5 | $2 / MTok | $10 / MTok | $1 / MTok | $5 / MTok |
| Claude Haiku 4.5 | $1 / MTok | $5 / MTok | $0.50 / MTok | $2.50 / MTok |
All data is current as of August 2026 and sourced from Anthropic's official documentation.
Learn more about Claude models, API usage, and best practices on the Claude Platform documentation.