GPT-5.6 SolvsClaude Opus 4.8

GPT-5.6 Sol leads the overall Podium Score by 4.8 points (80.8 vs 76.0).Category wins: GPT-5.6 Sol 5 — 2 Claude Opus 4.8.Claude Opus 4.8 is the cheaper pick ($15/M vs $30/M per 1M output tokens). GPT-5.6 Sol is faster (72 t/s vs 50 t/s).

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MetricGPT-5.6 SolClaude Opus 4.8
Podium Score80.8 ▲76.0
Arena Elo14831484 ▲
Intelligence Index59.0 ▲55.7
Coding64.8 ▲58.0
Math70.7 ▲58.7
Reasoning87.6 ▲82.8
Agentic33.974.9 ▲
Knowledge22.028.8 ▲
Multimodal97.4 ▲89.6
Long-context100.0 ▲99.2
Output speed72 t/s ▲50 t/s
Output price$30/M$15/M ▲
Context window1100K ▲1000K
Scores aggregated from five leaderboards on 2026-08-05. See Methodology. More head-to-heads: GPT-5.6 Sol vs Claude Mythos Preview · GPT-5.6 Sol vs Claude Fable 5 · GPT-5.6 Sol vs Kimi K3 · GPT-5.6 Sol vs Claude Opus 5