DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further …
Model details →DeepSeek: DeepSeek V3.1 Terminus vs Anthropic: Claude Opus Latest
DeepSeek: DeepSeek V3.1 Terminus and Anthropic: Claude Opus Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
This model always redirects to the latest model in the Claude Opus family.
Model details →Side-by-side comparison
| Capability | DeepSeek: DeepSeek V3.1 Terminus | Anthropic: Claude Opus Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 164K | 1M | 🏆 Anthropic: Claude Opus Latest |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.27 | $5.00 | 🏆 DeepSeek: DeepSeek V3.1 Terminus |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.00 | $25.00 | 🏆 DeepSeek: DeepSeek V3.1 Terminus |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Anthropic: Claude Opus Latest |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is DeepSeek: DeepSeek V3.1 Terminus better than Anthropic: Claude Opus Latest?
DeepSeek: DeepSeek V3.1 Terminus and Anthropic: Claude Opus Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between DeepSeek: DeepSeek V3.1 Terminus and Anthropic: Claude Opus Latest?
Input: $0.27 vs $5.00 per 1M tokens. Output: $1.00 vs $25.00 per 1M tokens.
What context windows do DeepSeek: DeepSeek V3.1 Terminus and Anthropic: Claude Opus Latest support?
DeepSeek: DeepSeek V3.1 Terminus supports up to 164K tokens. Anthropic: Claude Opus Latest supports up to 1M tokens.
Do both DeepSeek: DeepSeek V3.1 Terminus and Anthropic: Claude Opus Latest support tool calling?
DeepSeek: DeepSeek V3.1 Terminus: yes. Anthropic: Claude Opus Latest: yes.
Compare DeepSeek: DeepSeek V3.1 Terminus with other models
vs Anthropic Claude Haiku Latestvs Anthropic Claude Sonnet Latestvs Anthropic: Claude Fable Latestvs Anthropic: Claude Opus Latest