19 Feb 2026
Google Launches Gemini 3.1 Pro — World's Largest 2M-Token Context Window
Google released Gemini 3.1 Pro on February 19, 2026, setting a new frontier benchmark with a 2-million-token context window — the largest of any commercially available model. The model topped GPQA Diamond at 94.3% and scored 77.1% on ARC-AGI-2, leading all February 2026 evaluations. Priced at $2.00/$12.00 per million tokens (under 200K context) and paid-only since April 2026, Gemini 3.1 Pro is available via Google AI Studio, Vertex AI, and the Gemini API.
Why it mattersA 2M-token context eliminates chunking strategies for most enterprise document workloads — entire codebases, legal libraries, or research corpuses can now be reasoned over in a single pass.
Try itLoad a 500-page technical specification or codebase into Gemini AI Studio and ask cross-document questions that would have required RAG — compare accuracy to your current retrieval pipeline.