GPT-5.5 Instant (June 2026) vs Step 3.5 Flash
GPT-5.5 Instant (June 2026) vs Step 3.5 Flash. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.
Verdict
Comparison incomplete
A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.
| Metric | GPT-5.5 Instant (June 2026) | Step 3.5 Flash | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 16.6 | −36.2% Step 3.5 Flash is 36.2% less intelligent |
| Total AA cost (lower is better) | $1,184.34 | Not reported | — not comparable |
| End-to-end time (lower is better) | 16.68s | 18.16s | +8.9% Step 3.5 Flash is 8.9% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $0.10 / $0.30 | |
| Input modalities | Text, Image | Text |
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/step-3-5-flash-0202 · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/step-3-5-flash-0202?format=md · llms.txt · agent skill