token.app › Compare › GPT-4o-mini vs Kimi K3
GPT-4o-mini vs Kimi K3
Kimi K3 leads on 2 of 2 shared benchmarks. GPT-4o-mini is 23× 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-4o-mini | Kimi K3 | |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Input $/1M | $0.150 | $3.00 |
| Output $/1M | $0.600 | $15.00 |
| Blended $/1M | $0.262 | $6.00 |
| Context window | 128K | 1.0M |
| Max output | 16K | — |
| Released | Jul 2024 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 37.7% | 93.1% |
| OTIS Mock AIME | 6.9% | 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-4o-mini if…
- Costs less per token — $0.262 vs $6.00 blended
Choose Kimi K3 if…
- Higher GPQA Diamond (93.1% vs 37.7%)
- Higher OTIS Mock AIME (97.2% vs 6.9%)
- Larger context window (1.0M)
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, GPT-4o-mini or Kimi K3?
Across the 2 benchmarks both models have independently-run scores for, GPT-4o-mini leads on 0 and Kimi K3 leads on 2. Benchmarks are one input — price and context window are on this page too.
Is GPT-4o-mini cheaper than Kimi K3?
GPT-4o-mini is cheaper: $0.262 versus $6.00 per million tokens blended at 3:1 input:output. Input alone: $0.150 vs $3.00. Output alone: $0.600 vs $15.00.
What context windows do GPT-4o-mini and Kimi K3 have?
GPT-4o-mini: 128,000 tokens. Kimi K3: 1,048,576 tokens.
Who makes GPT-4o-mini and Kimi K3?
GPT-4o-mini is made by OpenAI. Kimi K3 is made by Moonshot AI.