GPT-5.5 Instant (June 2026) vs Kimi K3 (Low)
Which is better for the money: GPT-5.5 Instant (June 2026) by OpenAI or Kimi K3 (Low) by Kimi? 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
Kimi K3 (Low) scores 4.1 points higher (30.1 vs 26.0) but costs 1.2× as much to run the benchmark ($1190 vs $987; both premium class). Pick Kimi K3 (Low) when the extra intelligence is worth the premium, otherwise GPT-5.5 Instant (June 2026).
| Metric | GPT-5.5 Instant (June 2026) | Kimi K3 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 30.1 | +15.8% Kimi K3 (Low) is 15.8% more intelligent |
| Total AA cost (lower is better) | $986.85 | $1,190.42 | +20.6% Kimi K3 (Low) is 20.6% more expensive |
| End-to-end time (lower is better) | 16.68s | 49.38s | +196.0% Kimi K3 (Low) is 196.0% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $3.00 / $15.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3 (Low) vs GPT-5.5 Instant (June 2026): 15.8% more intelligence, 20.6% more cost to run the AA benchmark, and 196.0% 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 (Xhigh) scores 51.00 for $662.
- Kimi K3 (Low) 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)Kimi K3 (Low)Today's Pareto frontierOpen-weights 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/kimi-k3-low · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/kimi-k3-low?format=md · llms.txt · agent skill