Leaderboard
Fastest time-to-first-token (warm prefix)
Median warm TTFT from the Zumik benchmark. This is what an interactive user actually waits for on a repeated, cache-warm prompt.
| # | Model | Provider | Warm TTFT | List blended | Cache disc. |
|---|---|---|---|---|---|
| 1 | Claude Haiku 4.5 | Anthropic | 110 ms | $2.00 | −90% |
| 2 | OpenAI gpt-oss-120b | Fireworks | 120 ms | $0.26 | −90% |
| 3 | DeepSeek-V4-Pro | Fireworks | 130 ms | $2.17 | −92% |
| 4 | GLM 5.1 | Fireworks | 130 ms | $0.00 | −0% |
| 5 | Kimi K2.6 | Fireworks | 140 ms | $1.71 | −83% |
| 6 | Gemini 3.5 Flash | 150 ms | $3.38 | −90% | |
| 7 | GPT-5 Mini | OpenAI | 150 ms | $0.69 | −90% |
| 8 | Claude Sonnet 4.6 | Anthropic | 190 ms | $6.00 | −90% |
| 9 | Claude Opus 4.8 | Anthropic | 240 ms | $10.00 | −90% |
| 10 | GPT-5.5 | OpenAI | 240 ms | $11.25 | −90% |
| 11 | Claude Fable 5 | Anthropic | 280 ms | $20.00 | −90% |
| 12 | Grok 4.3 | xAI | 280 ms | $1.56 | −84% |
| 13 | Claude Opus 4.7 | Anthropic | 320 ms | $10.00 | −90% |
| 14 | Gemini 3.1 Pro Preview | 360 ms | $4.50 | −90% | |
| 15 | GPT-5.5 Pro | OpenAI | 900 ms | $67.50 | −0% |
Method
Median time-to-first-token on a cache-warm stable prefix, from 180k paired requests.
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