gpt-oss-20b (High) vs Grok 4.6 (Xhigh)
Which is better for the money: gpt-oss-20b (High) by OpenAI or Grok 4.6 (Xhigh) by SpaceXAI? 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
Grok 4.6 (Xhigh) scores 35.2 points higher (44.2 vs 9.0) but costs 78× as much to run the benchmark ($2242 vs $28.8; flagship vs budget cost classes). They are not alternatives at one budget: pick Grok 4.6 (Xhigh) when you need intelligence above 9.0, and gpt-oss-20b (High) when 9.0 is enough.
| Metric | gpt-oss-20b (High) | Grok 4.6 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 9.0 | 44.2 | +391.1% Grok 4.6 (Xhigh) is 4.9× more intelligent |
| Total AA cost (lower is better) | $28.81 | $2,241.91 | +7681.7% Grok 4.6 (Xhigh) is 78× more expensive |
| End-to-end time (lower is better) | 14.83s | 39.83s | +168.6% Grok 4.6 (Xhigh) is 168.6% slower |
| Price per 1M tokens (in / out) | $0.05 / $0.22 | $2.00 / $6.00 | |
| Input modalities | Text | Text, Image |
Grok 4.6 (Xhigh) vs gpt-oss-20b (High): 391.1% more intelligence, 7681.7% more cost to run the AA benchmark, and 168.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- gpt-oss-20b (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- Grok 4.6 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
gpt-oss-20b (High)Grok 4.6 (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-oss-20b/grok-4-6-xhigh · Markdown: /api/v1/compare/gpt-oss-20b/grok-4-6-xhigh?format=md · llms.txt · agent skill