Gemini 3.1 Pro PreviewvsGPT 5 Chat

Gemini 3.1 Pro Preview leads the overall Podium Score by 3.0 points (74.0 vs 71.0).Category wins: Gemini 3.1 Pro Preview 0 — 0 GPT 5 Chat.Gemini 3.1 Pro Preview is the cheaper pick ($5/M vs $10/M per 1M output tokens). Gemini 3.1 Pro Preview is faster (50 t/s vs 50 t/s).

Key VerdictAggregated 2026 Benchmark Analysis

Gemini 3.1 Pro Preview is rated higher overall with a Podium Score of 74.0 (vs 71.0 for GPT 5 Chat). Both models show closely matched capabilities across domain benchmarks.

Coding & Engineering
Comparable
Inference Speed
Gemini 3.1 Pro Preview (50 t/s)
Cost Efficiency
Gemini 3.1 Pro Preview ($5/M/M)
MetricGemini 3.1 Pro PreviewGPT 5 Chat
Podium Score74.0 ▲71.0
Arena Elo
Intelligence Index
Coding
Math
Reasoning
Agentic
Knowledge
Multimodal
Long-context
Output speed50 t/s50 t/s
Output price$5/M ▲$10/M
Context window128K128K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Gemini 3.1 Pro vs Claude Mythos · Gemini 3.1 Pro vs Claude Fable 5 · Gemini 3.1 Pro vs Kimi K3 · Gemini 3.1 Pro vs Claude Opus 5
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