Fast-mode variant of [Opus 4.7](/anthropic/claude-opus-4.7) - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
Model details →Anthropic: Claude Opus 4.7 (Fast) vs DeepSeek: DeepSeek V4.1 Flash
DeepSeek: DeepSeek V4.1 Flash wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Opus 4.7 (Fast) | DeepSeek: DeepSeek V4.1 Flash | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 1.0M | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $30.00 | $0.15 | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $150.00 | $0.60 | 🏆 DeepSeek: DeepSeek V4.1 Flash |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Opus 4.7 (Fast) better than DeepSeek: DeepSeek V4.1 Flash?
DeepSeek: DeepSeek V4.1 Flash wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Opus 4.7 (Fast) and DeepSeek: DeepSeek V4.1 Flash?
Input: $30.00 vs $0.15 per 1M tokens. Output: $150.00 vs $0.60 per 1M tokens.
What context windows do Anthropic: Claude Opus 4.7 (Fast) and DeepSeek: DeepSeek V4.1 Flash support?
Anthropic: Claude Opus 4.7 (Fast) supports up to 1M tokens. DeepSeek: DeepSeek V4.1 Flash supports up to 1.0M tokens.
Do both Anthropic: Claude Opus 4.7 (Fast) and DeepSeek: DeepSeek V4.1 Flash support tool calling?
Anthropic: Claude Opus 4.7 (Fast): yes. DeepSeek: DeepSeek V4.1 Flash: yes.