Balanced speed and intelligence with extended thinking support (per Anthropic models overview).
Model details →Claude Sonnet 4.6 vs DeepSeek V4 Pro
Claude Sonnet 4.6 wins on 1 of 6 axes — pricing and capability skew in its favour for most workloads.
DeepSeek V4 Pro — flagship API tier with discounts published on DeepSeek pricing page; verify live rates before billing.
Model details →Side-by-side comparison
| Capability | Claude Sonnet 4.6 | DeepSeek V4 Pro | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 1M | Tie |
| Input price (per 1M) Cost per million input tokens billed by the provider. | Custom | Custom | — |
| Output price (per 1M) Cost per million output tokens billed by the provider. | Custom | Custom | — |
| Tool / function calling First-class support for emitting structured tool calls. | — | — | Tie |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 Claude Sonnet 4.6 |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | — | Tie |
Frequently asked questions
Is Claude Sonnet 4.6 better than DeepSeek V4 Pro?
Claude Sonnet 4.6 wins on 1 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Claude Sonnet 4.6 and DeepSeek V4 Pro?
Input: Custom vs Custom per 1M tokens. Output: Custom vs Custom per 1M tokens.
What context windows do Claude Sonnet 4.6 and DeepSeek V4 Pro support?
Claude Sonnet 4.6 supports up to 1M tokens. DeepSeek V4 Pro supports up to 1M tokens.
Do both Claude Sonnet 4.6 and DeepSeek V4 Pro support tool calling?
Claude Sonnet 4.6: not advertised. DeepSeek V4 Pro: not advertised.