Google’s smartest Flash-tier workhorse, aimed at long-horizon coding and agents at low cost. It has a 1M tokens context window. Through Google’s API it costs $0.75 (then $1.50 from Jan 1) per million input tokens and $3.75 (then $7.50 from Jan 1) per million output tokens.
Among the tools we track, it’s available in Antigravity CLI, Copilot, Cursor and Amp. Introductory pricing runs through December 31, 2026, and from December 1 requests to gemini-2.5-pro start routing to it.
What Google reports
- Google reports 18.2% on Terminal-Bench 4.1
Vendor-reported figures, not independently verified by Code×Radar.
Related changes
- Copilot will drop six models, including Claude Fable 5, on December 14 · November 13, 2026
- Copilot retires GPT-5.5, GPT-5.4, GPT-5 mini, Grok 4.5 and Gemini 3.7 Flash · October 19, 2026
Sources
- aistudio.google.com: gemini 3.8 flash
- aistudio.google.com: pricing
- blog.google: 3 8 flash and 3 8 flash cyber
Facts last checked November 15, 2026.