GPT-5.5 Instant (June 2026) vs Mistral Large 4 Preview
Which is better for the money: GPT-5.5 Instant (June 2026) by OpenAI or Mistral Large 4 Preview by Mistral? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Mistral Large 4 Preview scores 12.4 points higher (38.4 vs 26.0) but costs 1.4× as much to run the benchmark ($1608 vs $1184; both premium class). Pick Mistral Large 4 Preview when the extra intelligence is worth the premium, otherwise GPT-5.5 Instant (June 2026).
| Metric | GPT-5.5 Instant (June 2026) | Mistral Large 4 Preview | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 38.4 | +47.7% Mistral Large 4 Previ… is 47.7% more intelligent |
| Total AA cost (lower is better) | $1,184.34 | $1,607.86 | +35.8% Mistral Large 4 Previ… is 35.8% more expensive |
| End-to-end time (lower is better) | 16.68s | 23.67s | +41.9% Mistral Large 4 Previ… is 41.9% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $1.36 / $4.18 | |
| Input modalities | Text, Image | Text, Image |
Mistral Large 4 Preview vs GPT-5.5 Instant (June 2026): 47.7% more intelligence, 35.8% more cost to run the AA benchmark, and 41.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 Instant (June 2026) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Mistral Large 4 Preview is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.5 Instant (June 2026)Mistral Large 4 PreviewToday's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-instant-06-26/mistral-large-4 · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/mistral-large-4?format=md · llms.txt · agent skill