GPT-5.6 Sol vs Gemini Pro
Sol is the stronger all-round generalist; Gemini 3.1 Pro is the better value and the reasoning-benchmark leader. Both handle roughly a million tokens of context and all three modalities, so this comes down to price sensitivity and which cloud you already pay.
| GPT-5.6 Sol | Gemini Pro | |
|---|---|---|
| Provider | OpenAI | |
| Current release | GPT-5.6 Sol | 3.1 Pro |
| Tier | Frontier | Frontier |
| Context | 1M | 1M |
| Cost | Frontier price | Moderate |
| Modalities | text, vision, audio | text, vision, audio |
| Open weights | No | No |
Cost is a tier, not a quote — providers change prices often. Check OpenAI and Google before you commit. Last updated 2026-08-14.
Which one to pick
GPT-5.6 SolOpenAI
The strongest generalist — complex agentic and scientific work across modalities
Reach for it when- You want the top overall scores and the widest third-party ecosystem
- Audio-native workflows
Gemini ProGoogle · 3.1 Pro
Reasoning over very long inputs — whole codebases, long documents, video
Reach for it when- The same tier of capability at a lower price
- Reasoning-heavy analysis
- You are already on Google Cloud or Workspace
Related comparisons
- Claude Opus vs GPT-5.6 SolThe headline matchup, and closer than either vendor's marketing suggests.
- Claude Opus vs Gemini ProTwo different bets.
- GPT-5.6 Sol vs GrokSol is the safer default and scores higher overall; Grok 4.6 matches it on some agentic work at a fraction of the short-context price.
- Gemini Pro vs GrokSimilar price band, different shapes.
- Claude Sonnet vs Gemini ProA tier-crossing comparison people make on price.
- GPT-5.6 Sol vs GPT-5.6 TerraSame family, same million-token context, different price and depth.