Claude 5.5 SonnetvsGemini 3.1 Flash-Lite Preview

Claude 5.5 Sonnet leads the overall Podium Score by 9.4 points (94.8 vs 85.4).Category wins: Claude 5.5 Sonnet 7 — 0 Gemini 3.1 Flash-Lite Preview.Gemini 3.1 Flash-Lite Preview is the cheaper pick ($0.3/M vs $15/M per 1M output tokens). Gemini 3.1 Flash-Lite Preview is faster (210 t/s vs 94 t/s).

Open in Compare Tool →View Claude 5.5 SonnetView Gemini 3.1 Flash-Lite
Claude 5.5 SonnetDrag slider or hover to compareGemini 3.1 Flash-Lite Preview
Gemini 3.1 Flash-Lite Preview
85.4
Coding: 76.0 · Speed: 210 t/s
Output Price: $0.3/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 85.4 for Gemini 3.1 Flash-Lite Preview). In head-to-head domain evaluations, Claude 5.5 Sonnet outperforms in 7 of 7 benchmark categories.

Coding & Engineering
Claude 5.5 Sonnet (91.5)
Inference Speed
Gemini 3.1 Flash-Lite Preview (210 t/s)
Cost Efficiency
Gemini 3.1 Flash-Lite Preview ($0.3/M)
API Price / 1M (in · out)
Claude 5.5 Sonnet $3/M · $15/M — Gemini 3.1 Flash-Lite $0.075/M · $0.3/M

Choose Claude 5.5 Sonnet for long documents and large codebases, and Gemini 3.1 Flash-Lite Preview for cost-sensitive workloads.

MetricClaude 5.5 SonnetGemini 3.1 Flash-Lite Preview
Podium Score94.8 ▲85.4
Arena Elo1520 ▲1365
Intelligence Index95.0 ▲85.0
Coding91.5 ▲76.0
Math94.2 ▲80.0
Reasoning95.0 ▲82.0
Agentic89.4 ▲74.0
Knowledge88.0 ▲81.0
Multimodal96.0 ▲89.0
Long-context98.0 ▲94.0
Output speed94 t/s210 t/s ▲
Output price$15/M$0.3/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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