Gemini 2.5 Pro
Gemini 2.5 Pro is deprecated and restricted to existing users during its remaining transition period.
Deprecated API; check access details
What the release provides
Google schedules requests to route to Gemini 3.8 Flash on 1 December 2026 at the replacement model's rates. The old endpoint accepts multimodal input and returns text.Gemini 2.5 Pro official API documentation
How to use it well
Practical guidance. Review applications that assume this endpoint remains fixed. Compare difficult reasoning tasks and tool sequences with the replacement before the routing date. Update records of model behavior and cost together so a changed response is not mistaken for a prompt regression.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Status | Deprecated API; check access details |
| Access | API |
| Model identifiers | gemini-2.5-pro |
| Context window | 1,048,576 tokens API input limit; reserve output capacity where the service shares one window. Gemini 2.5 Pro official API documentation |
| Maximum output | 65,536 tokens Published API output limit; request settings can be lower. Gemini 2.5 Pro official API documentation |