GPT-5.6 Sol (Medium) vs Grok 4.5 (High)
Which is better for the money: GPT-5.6 Sol (Medium) by OpenAI or Grok 4.5 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick GPT-5.6 Sol (Medium)
Grok 4.5 (High) vs GPT-5.6 Sol (Medium): 1.0% less intelligence, 24.7% more cost to run the AA benchmark, and 88.2% slower end-to-end.
| Metric | GPT-5.6 Sol (Medium) | Grok 4.5 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.2 | 38.8 | −1.0% Grok 4.5 (High) is 1.0% less intelligent |
| Total AA cost (lower is better) | $997.39 | $1,243.85 | +24.7% Grok 4.5 (High) is 24.7% more expensive |
| End-to-end time (lower is better) | 10.00s | 18.82s | +88.2% Grok 4.5 (High) is 88.2% slower |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Sol (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- Grok 4.5 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Sol (Medium)Grok 4.5 (High)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-sol-medium/grok-4-5 · Markdown: /api/v1/compare/gpt-5-6-sol-medium/grok-4-5?format=md · llms.txt · agent skill