Claude 5.5 SonnetvsGPT-6.1 Sol

Claude 5.5 Sonnet leads the overall Podium Score by 2.4 points (94.8 vs 92.4).Category wins: Claude 5.5 Sonnet 4 — 3 GPT-6.1 Sol.Claude 5.5 Sonnet is the cheaper pick ($15/M vs $20/M per 1M output tokens). Claude 5.5 Sonnet is faster (94 t/s vs 75 t/s).

Open in Compare Tool →View Claude 5.5 SonnetView GPT-6.1 Sol
Claude 5.5 SonnetDrag slider or hover to compareGPT-6.1 Sol
GPT-6.1 Sol
92.4
Coding: 89.0 · Speed: 75 t/s
Output Price: $20/M
Claude 5.5 Sonnet
94.8
Coding: 91.5 · Speed: 94 t/s
Output Price: $15/M
Quick VerdictAggregated 2026 Benchmark Analysis

Claude 5.5 Sonnet is rated higher overall with a Podium Score of 94.8 (vs 92.4 for GPT-6.1 Sol). In head-to-head domain evaluations, Claude 5.5 Sonnet outperforms in 4 of 7 benchmark categories.

Coding & Engineering
Claude 5.5 Sonnet (91.5)
Inference Speed
Claude 5.5 Sonnet (94 t/s)
Cost Efficiency
Claude 5.5 Sonnet ($15/M)
API Price / 1M (in · out)
Claude 5.5 Sonnet $3/M · $15/M — GPT-6.1 Sol $5/M · $20/M

Choose Claude 5.5 Sonnet for long documents and large codebases, and GPT-6.1 Sol for complex reasoning and analysis.

MetricClaude 5.5 SonnetGPT-6.1 Sol
Podium Score94.8 ▲92.4
Arena Elo1520 ▲1495
Intelligence Index95.0 ▲93.0
Coding91.5 ▲89.0
Math94.295.0 ▲
Reasoning95.095.5 ▲
Agentic89.4 ▲86.5
Knowledge88.089.0 ▲
Multimodal96.0 ▲93.0
Long-context98.0 ▲96.0
Output speed94 t/s ▲75 t/s
Output price$15/M ▲$20/M
Context window1000K1000K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude 5.5 Sonnet vs Claude Mythos · Claude 5.5 Sonnet vs Kimi K3.1 Pro · Claude 5.5 Sonnet vs Eleven Multilingual v3 · Claude 5.5 Sonnet vs FLUX.2 Pro
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