Claude Sonnet 5 vs Kimi K3.1 Pro
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Kimi K3.1 Pro has the larger context window (1M vs 1M).
| Claude Sonnet 5 | Kimi K3.1 Pro | |
|---|---|---|
| Input price / 1M | $2.00 | $2.00 |
| Output price / 1M | $10.00 | $10.00 |
| Blended price (3:1) | $4.00 | $4.00 |
| Cached input / 1M | $0.20 | $0.20 |
| Context window | 1M | 1M |
| Max output | 128K | 944K |
| Intelligence index | — | 46.5 |
| Coding index | 71.5 | — |
| Providers | 10 | 23 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-06-30 | 2026-10-23 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Claude Sonnet 5 or Kimi K3.1 Pro?
Claude Sonnet 5 and Kimi K3.1 Pro are priced identically.
Claude Sonnet 5 vs Kimi K3.1 Pro: which has a bigger context window?
Claude Sonnet 5: 1,000,000 tokens. Kimi K3.1 Pro: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Sonnet 5 ≈ $9,000, Kimi K3.1 Pro ≈ $9,000.
More comparisons
Claude Sonnet 5 vs Gemini 4 CarbonClaude Sonnet 5 vs Claude Fable 5.2Claude Sonnet 5 vs Gemini Omni 1.2 FlashClaude Sonnet 5 vs Gemini Omni 1.1 FlashClaude Sonnet 5 vs Hy4Claude Sonnet 5 vs GLM 5.3 FlashX LegalClaude Sonnet 5 vs GPT-6.1 TerraClaude Sonnet 5 vs GPT-6.1 Terra ProClaude Sonnet 5 vs MiniMax M3.1 FlashClaude Sonnet 5 vs DeepSeek V4.1 Flash 1017Claude Sonnet 5 vs Nemotron 3.5 Super VLClaude Sonnet 5 vs Gemini 4 ArgonClaude Sonnet 5 vs Claude Haiku 5.5Claude Sonnet 5 vs Nano Banana 2.1Claude Sonnet 5 vs Mistral Large 4Claude Sonnet 5 vs GPT-6.1 Sol ProKimi 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 Pro