gpt-oss-20b (High) vs Mistral Large 3
Which is better for the money: gpt-oss-20b (High) by OpenAI or Mistral Large 3 by Mistral? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Mistral Large 3 scores 0.3 points higher (9.3 vs 9.0) but costs 1.6× as much to run the benchmark ($46.4 vs $28.8; both budget class). Pick Mistral Large 3 when the extra intelligence is worth the premium, otherwise gpt-oss-20b (High).
| Metric | gpt-oss-20b (High) | Mistral Large 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 9.0 | 9.3 | +3.3% Mistral Large 3 is 3.3% more intelligent |
| Total AA cost (lower is better) | $28.81 | $46.41 | +61.1% Mistral Large 3 is 61.1% more expensive |
| End-to-end time (lower is better) | 16.48s | 7.23s | −56.1% Mistral Large 3 is 56.1% faster |
| Price per 1M tokens (in / out) | $0.05 / $0.22 | $0.50 / $1.50 | |
| Input modalities | Text | Text, Image |
Mistral Large 3 vs gpt-oss-20b (High): 3.3% more intelligence, 61.1% more cost to run the AA benchmark, and 56.1% faster end-to-end.
Today's Pareto frontier
Against the frontier
- gpt-oss-20b (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- Mistral Large 3 is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
gpt-oss-20b (High)Mistral Large 3Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-oss-20b/mistral-large-3 · Markdown: /api/v1/compare/gpt-oss-20b/mistral-large-3?format=md · llms.txt · agent skill