Kimi K3.1 Pro vs Step 3.7 Flash
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Step 3.7 Flash is 9.1× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix. Kimi K3.1 Pro has the larger context window (1M vs 262K).
| Kimi K3.1 Pro | Step 3.7 Flash | |
|---|---|---|
| Input price / 1M | $2.00 | $0.20 |
| Output price / 1M | $10.00 | $1.15 |
| Blended price (3:1) | $4.00 | $0.44 |
| Cached input / 1M | $0.20 | $0.04 |
| Context window | 1M | 262K |
| Max output | 944K | 230K |
| Intelligence index | 46.5 | — |
| Coding index | — | 39.6 |
| Providers | 23 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-23 | 2026-05-28 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Kimi K3.1 Pro or Step 3.7 Flash?
Step 3.7 Flash is 9.1× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix.
Kimi K3.1 Pro vs Step 3.7 Flash: which has a bigger context window?
Kimi K3.1 Pro: 1,048,576 tokens. Step 3.7 Flash: 262,144 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Kimi K3.1 Pro ≈ $9,000, Step 3.7 Flash ≈ $975.00.
More comparisons
Kimi K3.1 Pro vs Gemini 4 CarbonKimi K3.1 Pro vs Claude Fable 5.2Kimi K3.1 Pro vs Gemini Omni 1.2 FlashKimi K3.1 Pro vs Gemini Omni 1.1 FlashKimi K3.1 Pro vs Hy4Kimi K3.1 Pro vs GLM 5.3 FlashX LegalKimi K3.1 Pro vs GPT-6.1 TerraKimi K3.1 Pro vs GPT-6.1 Terra ProKimi K3.1 Pro vs MiniMax M3.1 FlashKimi K3.1 Pro vs DeepSeek V4.1 Flash 1017Kimi K3.1 Pro vs Nemotron 3.5 Super VLKimi K3.1 Pro vs Gemini 4 ArgonKimi K3.1 Pro vs Claude Haiku 5.5Kimi K3.1 Pro vs Nano Banana 2.1Kimi K3.1 Pro vs Mistral Large 4Kimi K3.1 Pro vs GPT-6.1 Sol ProStep 3.7 Flash vs Gemini 4 CarbonStep 3.7 Flash vs Claude Fable 5.2Step 3.7 Flash vs Gemini Omni 1.2 FlashStep 3.7 Flash vs Gemini Omni 1.1 FlashStep 3.7 Flash vs Hy4Step 3.7 Flash vs GLM 5.3 FlashX LegalStep 3.7 Flash vs GPT-6.1 TerraStep 3.7 Flash vs GPT-6.1 Terra Pro