token.app › Compare › GPT-4.1 Nano vs Kimi K3
GPT-4.1 Nano vs Kimi K3
Kimi K3 leads on 2 of 2 shared benchmarks. GPT-4.1 Nano is 34× cheaper per token on a blended 3:1 basis. Kimi K3 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-4.1 Nano | Kimi K3 | |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Input $/1M | $0.100 | $3.00 |
| Output $/1M | $0.400 | $15.00 |
| Blended $/1M | $0.175 | $6.00 |
| Context window | 1.0M | 1.0M |
| Max output | 33K | — |
| Released | Apr 2025 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 48.9% | 93.1% |
| OTIS Mock AIME | 28.9% | 97.2% |
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 GPT-4.1 Nano if…
- Costs less per token — $0.175 vs $6.00 blended
Choose Kimi K3 if…
- Higher GPQA Diamond (93.1% vs 48.9%)
- Higher OTIS Mock AIME (97.2% vs 28.9%)
- Larger context window (1.0M)
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, GPT-4.1 Nano or Kimi K3?
Across the 2 benchmarks both models have independently-run scores for, GPT-4.1 Nano leads on 0 and Kimi K3 leads on 2. Benchmarks are one input — price and context window are on this page too.
Is GPT-4.1 Nano cheaper than Kimi K3?
GPT-4.1 Nano is cheaper: $0.175 versus $6.00 per million tokens blended at 3:1 input:output. Input alone: $0.100 vs $3.00. Output alone: $0.400 vs $15.00.
What context windows do GPT-4.1 Nano and Kimi K3 have?
GPT-4.1 Nano: 1,047,576 tokens. Kimi K3: 1,048,576 tokens.
Who makes GPT-4.1 Nano and Kimi K3?
GPT-4.1 Nano is made by OpenAI. Kimi K3 is made by Moonshot AI.