Model comparison
GPT-5.4 Pro vs Mistral Nemo
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 26.4 on the Noometry Index. Mistral Nemo costs 450× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.
Last verified . 2 shared benchmarks.
Mistral AISummary
- They share 2 benchmarks with published results for both. GPT-5.4 Pro scores higher in 3 categories and Mistral Nemo in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.4 Pro leads 68.3 to 12.3.
- The biggest single-benchmark swing is GPQA Diamond: 94.6% for GPT-5.4 Pro and 29.9% for Mistral Nemo.
- Mistral Nemo is cheaper at $0.15 / $0.15 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
- GPT-5.4 Pro accepts more context: 1.05M tokens versus 128K.
- Mistral Nemo has downloadable open weights; the other is API-only.
Side by side
| GPT-5.4 Pro | Mistral Nemo | |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 58.9 | 26.4 |
| Released | 2026-03-05 | 2024-07-01 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 128K |
| Max output | 128K | 128K |
| Input $ / M tokens | $30 | $0.15 |
| Output $ / M tokens | $180 | $0.15 |
| Results tracked | 16 | 10 |
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Category by category
Coding Not comparable
GPT-5.4 Pro: 43.2 (#90), Mistral Nemo: —
| Benchmark | GPT-5.4 Pro | Mistral Nemo |
|---|---|---|
| WeirdML | 57.4% | — |
Agentic & Tool Use Not comparable
GPT-5.4 Pro: —, Mistral Nemo: 23.5 (#125)
| Benchmark | GPT-5.4 Pro | Mistral Nemo |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 27.6% |
| BALROG | — | 17.6% |
Reasoning GPT-5.4 Pro leads
GPT-5.4 Pro: 70.7 (#13), Mistral Nemo: 20.7 (#232)
| Benchmark | GPT-5.4 Pro | Mistral Nemo |
|---|---|---|
| Epoch Capabilities Index | 158.93 | 118.68 |
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| ARC-AGI-1 | 94.5% | — |
| CritPt | 30% | — |
| Chess Puzzles | 58.6% | — |
| EnigmaEval | 23.8% | — |
| DTBench | — | 48.6% |
| PIQA | — | 83.5% |
Math GPT-5.4 Pro leads
GPT-5.4 Pro: 72.4 (#22), Mistral Nemo: 25.5 (#268)
| Benchmark | GPT-5.4 Pro | Mistral Nemo |
|---|---|---|
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| MATH Level 5 | — | 10.8% |
| FrontierMath (Feb 2025 set) | 50% | — |
| FrontierMath Tier 4 (v1) | 37.5% | — |
| GSM8K | — | 84.2% |
Knowledge GPT-5.4 Pro leads
GPT-5.4 Pro: 68.3 (#7), Mistral Nemo: 12.3 (#298)
| Benchmark | GPT-5.4 Pro | Mistral Nemo |
|---|---|---|
| GPQA Diamond | 94.6% | 29.9% |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| Vectara Hallucination Rate | 8.3% | — |
| BoolQ | — | 82.5% |
Writing & Preference Not comparable
GPT-5.4 Pro: —, Mistral Nemo: 28.5 (#296)
| Benchmark | GPT-5.4 Pro | Mistral Nemo |
|---|---|---|
| EQ-Bench Creative Writing | — | 881 |
Frequently asked questions
Is GPT-5.4 Pro better than Mistral Nemo?
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 26.4 on the Noometry Index. Mistral Nemo costs 450× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.
Which is cheaper, GPT-5.4 Pro or Mistral Nemo?
Mistral Nemo is cheaper. It lists at $0.15 per million input tokens and $0.15 per million output tokens; GPT-5.4 Pro lists at $30 and $180.
Which has the bigger context window?
GPT-5.4 Pro does, with 1.05M tokens against 128K.
How many benchmarks do GPT-5.4 Pro and Mistral Nemo share?
2 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Mistral Nemo has 10.