Gemini 3.1 Pro
Google's Pro-tier model — capable, but its own Flash line has passed it
Verdict
Still the current "Pro" release, but Google has not updated this tier since February 2026 while Flash raced to 3.7 — and 3.5 Flash already outperforms 3.1 Pro on agentic and coding benchmarks per Google's own comparisons. Native 2M context and deep multimodal understanding still make it the right call for very long documents. For coding and agents specifically, pick Gemini 3.7 Flash instead.
Other Text Generation & Reasoning
- GPT-5.6Production
OpenAI current flagship — Sol/Terra/Luna tiers, 1.05M context
- GPT-5Superseded
OpenAI's previous flagship — superseded by GPT-5.6
- GPT-5 miniProduction
OpenAI's cost-efficient GPT-5-tier model — most of the quality at a fraction of the cost
- GPT-4oProduction
OpenAI previous-gen multimodal model — text, vision, audio
- GPT-4o miniStable
OpenAI's previous-gen cost-efficient model — superseded by GPT-5 mini
- GPT-OSS 120BStable
OpenAI's first open-weight model — 120B params, fully downloadable