token.app › Compare › Mistral Small 3 vs GPT-5.6 Luna
Mistral Small 3 vs GPT-5.6 Luna
GPT-5.6 Luna leads on 2 of 2 shared benchmarks. Mistral Small 3 is 3.9× cheaper per token on a blended 3:1 basis. GPT-5.6 Luna accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| Mistral Small 3 | GPT-5.6 Luna | |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Input $/1M | $0.050 | $0.100 |
| Output $/1M | $0.080 | $0.600 |
| Blended $/1M | $0.058 | $0.225 |
| Context window | 33K | 1.1M |
| Max output | 16K | 128K |
| Released | Jan 2025 | Jul 2026 |
| Licence | Open weights | Proprietary |
| GPQA Diamond | 45.3% | 91.6% |
| OTIS Mock AIME | 5.3% | 98.3% |
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 Mistral Small 3 if…
- Costs less per token — $0.058 vs $0.225 blended
- Open weights — self-hostable
Choose GPT-5.6 Luna if…
- Higher GPQA Diamond (91.6% vs 45.3%)
- Higher OTIS Mock AIME (98.3% vs 5.3%)
- Larger context window (1.1M)
- Newer model (released Jul 2026)
FAQ
Which is better, Mistral Small 3 or GPT-5.6 Luna?
Across the 2 benchmarks both models have independently-run scores for, Mistral Small 3 leads on 0 and GPT-5.6 Luna leads on 2. Benchmarks are one input — price and context window are on this page too.
Is Mistral Small 3 cheaper than GPT-5.6 Luna?
Mistral Small 3 is cheaper: $0.058 versus $0.225 per million tokens blended at 3:1 input:output. Input alone: $0.050 vs $0.100. Output alone: $0.080 vs $0.600.
What context windows do Mistral Small 3 and GPT-5.6 Luna have?
Mistral Small 3: 32,768 tokens. GPT-5.6 Luna: 1,050,000 tokens.
Who makes Mistral Small 3 and GPT-5.6 Luna?
Mistral Small 3 is made by Mistral AI. GPT-5.6 Luna is made by OpenAI.