Claude 5.5 SonnetvsGemini 3.1 Pro Preview
Claude 5.5 Sonnet leads the overall Podium Score by 4.0 points (94.8 vs 90.8).Category wins: Claude 5.5 Sonnet 6 — 0 Gemini 3.1 Pro Preview.Gemini 3.1 Pro Preview is the cheaper pick ($5/M vs $15/M per 1M output tokens). Gemini 3.1 Pro Preview is faster (105 t/s vs 94 t/s).
Claude 5.5 SonnetDrag slider or hover to compareGemini 3.1 Pro Preview
Quick VerdictAggregated 2026 Benchmark Analysis
Claude 5.5 Sonnet is rated higher overall with a Podium Score of 94.8 (vs 90.8 for Gemini 3.1 Pro Preview). In head-to-head domain evaluations, Claude 5.5 Sonnet outperforms in 6 of 7 benchmark categories.
Coding & Engineering
Claude 5.5 Sonnet (91.5)
Inference Speed
Gemini 3.1 Pro Preview (105 t/s)
Cost Efficiency
Gemini 3.1 Pro Preview ($5/M)
API Price / 1M (in · out)
Claude 5.5 Sonnet $3/M · $15/M — Gemini 3.1 Pro $1.25/M · $5/M
Choose Claude 5.5 Sonnet for long documents and large codebases, and Gemini 3.1 Pro Preview for cost-sensitive workloads.
| Metric | Claude 5.5 Sonnet | Gemini 3.1 Pro Preview |
|---|---|---|
| Podium Score | 94.8 ▲ | 90.8 |
| Arena Elo | 1520 ▲ | 1465 |
| Intelligence Index | 95.0 ▲ | 91.0 |
| Coding | 91.5 ▲ | 85.5 |
| Math | 94.2 ▲ | 89.0 |
| Reasoning | 95.0 ▲ | 91.0 |
| Agentic | 89.4 ▲ | 82.0 |
| Knowledge | 88.0 | 88.0 |
| Multimodal | 96.0 ▲ | 94.0 |
| Long-context | 98.0 ▲ | 96.0 |
| Output speed | 94 t/s | 105 t/s ▲ |
| Output price | $15/M | $5/M ▲ |
| Context window | 1000K | 1000K |
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