Gemini 2.5 Flash vs Gemini 3.5 Flash

Pick two tools from the same category to compare side-by-side.

	Gemini 2.5 Flash Google's fast, cheap small model; long context, native multimodal.	Gemini 3.5 Flash Google's stable frontier model for sustained agentic and coding work, the current GA workhorse of the Gemini 3 family.
Category	model	model
Vendor type	commercial	commercial
Pricing	free	usage
Strengths	+ Very long context for its tier + Native multimodal + Low cost	+ Only stable GA model in the Gemini 3.x family as of June 2026; positioned for agentic execution and sub-agent deployment + 1M-token context window with thought preservation across multi-turn agent loops + Rich built-in tool ecosystem (search/maps grounding, code execution, file search, function calling)
Tradeoffs	− Tool-use ergonomics differ from OpenAI/Anthropic	− Per Google docs: Computer Use is not supported at this moment (it was available in the Gemini 3 Flash Preview) − Output capped at 65k tokens, lower than competing flagships' 128k
Used in stacks	0	0