Still available; Anthropic recommends migrating toward Opus 4.7 for latest improvements.
Model details →Claude Opus 4.6 vs DeepSeek V4 Flash
Claude Opus 4.6 wins on 1 of 6 axes — pricing and capability skew in its favour for most workloads.
DeepSeek V4 Flash — 1M context, thinking and non-thinking modes; see DeepSeek pricing/docs for current capabilities.
Model details →Side-by-side comparison
| Capability | Claude Opus 4.6 | DeepSeek V4 Flash | 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 Opus 4.6 |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | — | Tie |
Frequently asked questions
Is Claude Opus 4.6 better than DeepSeek V4 Flash?
Claude Opus 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 Opus 4.6 and DeepSeek V4 Flash?
Input: Custom vs Custom per 1M tokens. Output: Custom vs Custom per 1M tokens.
What context windows do Claude Opus 4.6 and DeepSeek V4 Flash support?
Claude Opus 4.6 supports up to 1M tokens. DeepSeek V4 Flash supports up to 1M tokens.
Do both Claude Opus 4.6 and DeepSeek V4 Flash support tool calling?
Claude Opus 4.6: not advertised. DeepSeek V4 Flash: not advertised.