GPT-5.5 Instant (June 2026) vs GPT-6.1 Terra (Non-reasoning)
Which is better for the money: GPT-5.5 Instant (June 2026) by OpenAI or GPT-6.1 Terra (Non-reasoning) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Non-reasoning)
GPT-6.1 Terra (Non-reasoning) vs GPT-5.5 Instant (June 2026): 28.8% more intelligence, 84.4% less cost to run the AA benchmark, and 59.8% faster end-to-end.
| Metric | GPT-5.5 Instant (June 2026) | GPT-6.1 Terra (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 33.5 | +28.8% GPT-6.1 Terra (Non-re… is 28.8% more intelligent |
| Total AA cost (lower is better) | $986.85 | $153.58 | −84.4% GPT-6.1 Terra (Non-re… is 84.4% cheaper |
| End-to-end time (lower is better) | 16.18s | 6.51s | −59.8% GPT-6.1 Terra (Non-re… is 59.8% faster |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $1.00 / $5.00 | |
| Input modalities | Text, Image | Text, Image |
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 (Xhigh) scores 51.00 for $662.
- GPT-6.1 Terra (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
GPT-5.5 Instant (June 2026)GPT-6.1 Terra (Non-reasoning)Today'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/gpt-6-1-terra-non-reasoning · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/gpt-6-1-terra-non-reasoning?format=md · llms.txt · agent skill