Compare Claude Sonnet 4.6 (Anthropic) and DeepSeek-V4-Flash-0731 (DeepSeek) by price, context, capabilities, and latency.
Side by side
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.6anthropic/claude-sonnet-4.6 | Anthropic | $3 / 1M tokens | $15 / 1M tokens | 1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1745-2526ms | Catalog | Platform curated |
| DeepSeek-V4-Flash-0731deepseek/deepseek-v4-flash-0731 | DeepSeek | $0.45 / 1M tokens | $1.33 / 1M tokens | 1M | StreamingTool callingJSON modeLong context | Chinese Q&A, general chat | 1728-3730ms | Catalog | Platform curated |
FAQ
DeepSeek-V4-Flash-0731 is cheaper ($0.45 / 1M tokens input / $1.33 / 1M tokens output) vs Claude Sonnet 4.6 ($3 / 1M tokens input / $15 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
Both offer the same context window: 1M tokens.
Both target Long context. Pick DeepSeek-V4-Flash-0731 to optimize cost, or Claude Sonnet 4.6 for the longer context window. Test both on real prompts before committing production traffic.