Claude Haiku 5.5 vs DeepSeek V3.1 Terminus
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Claude Haiku 5.5 is 2.3× cheaper than DeepSeek V3.1 Terminus on a typical 3:1 input/output mix. Claude Haiku 5.5 has the larger context window (1M vs 164K).
| Claude Haiku 5.5 | DeepSeek V3.1 Terminus | |
|---|---|---|
| Input price / 1M | $0.10 | $0.27 |
| Output price / 1M | $0.50 | $1.00 |
| Blended price (3:1) | $0.20 | $0.45 |
| Cached input / 1M | $0.01 | — |
| Context window | 1M | 164K |
| Max output | 128K | 147K |
| Intelligence index | 36.5 | — |
| Coding index | — | 43.5 |
| Providers | 10 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-07 | 2025-09-22 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Claude Haiku 5.5 or DeepSeek V3.1 Terminus?
Claude Haiku 5.5 is 2.3× cheaper than DeepSeek V3.1 Terminus on a typical 3:1 input/output mix.
Claude Haiku 5.5 vs DeepSeek V3.1 Terminus: which has a bigger context window?
Claude Haiku 5.5: 1,000,000 tokens. DeepSeek V3.1 Terminus: 163,840 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Haiku 5.5 ≈ $450.00, DeepSeek V3.1 Terminus ≈ $1,040.
More comparisons
Claude Haiku 5.5 vs Gemini 4 CarbonClaude Haiku 5.5 vs Claude Fable 5.2Claude Haiku 5.5 vs Gemini Omni 1.2 FlashClaude Haiku 5.5 vs Gemini Omni 1.1 FlashClaude Haiku 5.5 vs Hy4Claude Haiku 5.5 vs GLM 5.3 FlashX LegalClaude Haiku 5.5 vs GPT-6.1 TerraClaude Haiku 5.5 vs GPT-6.1 Terra ProClaude Haiku 5.5 vs Kimi K3.1 ProClaude Haiku 5.5 vs MiniMax M3.1 FlashClaude Haiku 5.5 vs DeepSeek V4.1 Flash 1017Claude Haiku 5.5 vs Nemotron 3.5 Super VLClaude Haiku 5.5 vs Gemini 4 ArgonClaude Haiku 5.5 vs Nano Banana 2.1Claude Haiku 5.5 vs Mistral Large 4Claude Haiku 5.5 vs GPT-6.1 Sol ProDeepSeek V3.1 Terminus vs Gemini 4 CarbonDeepSeek V3.1 Terminus vs Claude Fable 5.2DeepSeek V3.1 Terminus vs Gemini Omni 1.2 FlashDeepSeek V3.1 Terminus vs Gemini Omni 1.1 FlashDeepSeek V3.1 Terminus vs Hy4DeepSeek V3.1 Terminus vs GLM 5.3 FlashX LegalDeepSeek V3.1 Terminus vs GPT-6.1 TerraDeepSeek V3.1 Terminus vs GPT-6.1 Terra Pro