Gemini 2.5 Pro
Google's previous Pro-tier model — superseded by Gemini 3.1 Pro
Verdict
A full major version behind the current Pro tier now. The 2M context window and multimodal handling were the headline then; Gemini 3.1 Pro does the same job with a newer model underneath. Migrate new work to 3.1 Pro, or to 3.7 Flash if the workload is coding or agentic.
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OpenAI's previous flagship — superseded by GPT-5.6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OpenAI's previous-gen cost-efficient model — superseded by GPT-5 mini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