Claude Haiku 4.5 vs DeepSeek V3.1 Terminus
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Haiku 4.5 and DeepSeek V3.1 Terminus.
Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...
DeepSeek V3.1 Terminus
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 optimizing the model's...
Technical Specifications
| Specification | Claude Haiku 4.5 | DeepSeek V3.1 Terminus |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Context Window | 200,000 tokens | 163,840 tokens |
| Agent Suitability | 87/100 | N/A |
| Time to First Token (TTFT) | 180 ms | N/A |
| Deployment Model | managed api | self hostable |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-10-15 | 2025-09-22 |
API Pricing Comparison
Input Price per Million Tokens
Claude Haiku 4.5
$1.00
DeepSeek V3.1 Terminus
$0.27
Output Price per Million Tokens
Claude Haiku 4.5
$5.00
DeepSeek V3.1 Terminus
$0.95
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Claude Haiku 4.5 Quirks & Gotchas
- ▸Fastest TTFT in the Claude lineup — ideal for real-time chat
- ▸Tool calling limited compared to Sonnet — best for simple classification and routing
DeepSeek V3.1 Terminus Quirks & Gotchas
No developer gotchas reported.