token.app › Compare › Claude Sonnet 5 vs Kimi K2.6
Claude Sonnet 5 vs Kimi K2.6
Kimi K2.6 leads on 3 of 5 shared benchmarks. Kimi K2.6 is 3.8× cheaper per token on a blended 3:1 basis. Claude Sonnet 5 accepts the larger context window (1M).
Head to head
Blended price uses a 3:1 input:output mix
| Claude Sonnet 5 | Kimi K2.6 | |
|---|---|---|
| Provider | Anthropic | Moonshot AI |
| Input $/1M | $2.00 | $0.580 |
| Output $/1M | $10.00 | $2.44 |
| Blended $/1M | $4.00 | $1.04 |
| Context window | 1M | 262K |
| Max output | 128K | 262K |
| Released | Jun 2026 | Apr 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 90.5% | 90.8% |
| FrontierMath T1–3 | 65.6% | 57.2% |
| FrontierMath T4 | 29.3% | 25.6% |
| SimpleQA Verified | 25.0% | 38.7% |
| OTIS Mock AIME | 94.7% | 96.1% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Claude Sonnet 5 if…
- Higher FrontierMath T1–3 (65.6% vs 57.2%)
- Higher FrontierMath T4 (29.3% vs 25.6%)
- Larger context window (1M)
- Newer model (released Jun 2026)
Choose Kimi K2.6 if…
- Costs less per token — $1.04 vs $4.00 blended
- Higher GPQA Diamond (90.8% vs 90.5%)
- Higher SimpleQA Verified (38.7% vs 25.0%)
- Higher OTIS Mock AIME (96.1% vs 94.7%)
- Open weights — self-hostable
FAQ
Which is better, Claude Sonnet 5 or Kimi K2.6?
Across the 5 benchmarks both models have independently-run scores for, Claude Sonnet 5 leads on 2 and Kimi K2.6 leads on 3. Benchmarks are one input — price and context window are on this page too.
Is Claude Sonnet 5 cheaper than Kimi K2.6?
Kimi K2.6 is cheaper: $1.04 versus $4.00 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $0.580. Output alone: $10.00 vs $2.44.
What context windows do Claude Sonnet 5 and Kimi K2.6 have?
Claude Sonnet 5: 1,000,000 tokens. Kimi K2.6: 262,144 tokens.
Who makes Claude Sonnet 5 and Kimi K2.6?
Claude Sonnet 5 is made by Anthropic. Kimi K2.6 is made by Moonshot AI.