GPT-5.6 Terra (Non-reasoning) vs Grok 4.3 (Non-reasoning)
Which is better for the money: GPT-5.6 Terra (Non-reasoning) by OpenAI or Grok 4.3 (Non-reasoning) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
GPT-5.6 Terra (Non-reasoning) scores 6.8 points higher (20.8 vs 14.0) but costs 1.2× as much to run the benchmark ($256 vs $216; both mid-range class). Pick GPT-5.6 Terra (Non-reasoning) when the extra intelligence is worth the premium, otherwise Grok 4.3 (Non-reasoning).
| Metric | GPT-5.6 Terra (Non-reasoning) | Grok 4.3 (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 20.8 | 14.0 | −32.7% Grok 4.3 (Non-reasoni… is 32.7% less intelligent |
| Total AA cost (lower is better) | $255.77 | $215.93 | −15.6% Grok 4.3 (Non-reasoni… is 15.6% cheaper |
| End-to-end time (lower is better) | 5.11s | 5.89s | +15.3% Grok 4.3 (Non-reasoni… is 15.3% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.3 (Non-reasoning) vs GPT-5.6 Terra (Non-reasoning): 32.7% less intelligence, 15.6% less cost to run the AA benchmark, and 15.3% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Non-reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- Grok 4.3 (Non-reasoning) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
GPT-5.6 Terra (Non-reasoning)Grok 4.3 (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-5-6-terra-non-reasoning/grok-4-3-non-reasoning · Markdown: /api/v1/compare/gpt-5-6-terra-non-reasoning/grok-4-3-non-reasoning?format=md · llms.txt · agent skill