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Google

Gemini 3.5 Flash

Gemini 3.5 Flash is a Google model with 1.05M context, $1.50 in / $9 out per million tokens, last verified October 1, 2026. Open weights: no. Status: Legacy. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

Gemini 3.5 Flash is Google's agent-focused Flash tier launched at Google I/O 2026.

Recorded profile verification October 1, 2026Individual provider fields may change

AI model specification details
SpecificationGemini 3.5 Flash
ProviderGoogle
TierBalanced
Context window1.05M
Max output66K
Input / 1M tokens$1.50
Output / 1M tokens$9
WeightsClosed
ParametersNot verifiedUnverified
Reasoning levelsminimal, low, medium, high
Modalitiestext, image, video, audio, pdf
API model idgemini-3.5-flash
ReleasedMay 19, 2026

Pricing tiers: Standard $1.50/$9 per MTok, output including thinking; cached input $0.15 plus $1/MTok-hour storage. Batch/Flex input/output $0.75/$4.50; their published cached-input rates differ ($0.075 Batch, $0.08 Flex). Priority $2.70/$16.20. Newer Flash intro rates are lower until January 1, 2027. Grounding tools have separate charges and quotas.

Best for

  • Agentic workflows
  • Multimodal input
  • High-volume work

Watch out

Earlier Flash generation with higher current standard input/output rates than Flash 3.6/3.7/3.8. Compare the applicable pricing tier, dated benchmark settings and announced January 2027 rates for your workload.

History

Gemini 3.5 Flash timeline

Release and status events for this model that passed two-source verification — dated, sourced, and linked.

Source receipts

Catalog figures for this model were checked against the following sources.

Common questions

Gemini 3.5 Flash

Answered from the verified figures on this page rather than general guidance.

How much does Gemini 3.5 Flash cost per million tokens?
Gemini 3.5 Flash lists base rates of $1.50 per million input tokens and $9 per million output tokens. Estimate both input and output token volume and any additional charges for your workload. Standard $1.50/$9 per MTok, output including thinking; cached input $0.15 plus $1/MTok-hour storage. Batch/Flex input/output $0.75/$4.50; their published cached-input rates differ ($0.075 Batch, $0.08 Flex). Priority $2.70/$16.20. Newer Flash intro rates are lower until January 1, 2027. Grounding tools have separate charges and quotas.
What is Gemini 3.5 Flash's context window?
Gemini 3.5 Flash accepts about 1.05M tokens of context. That only matters if you routinely send very long documents, large codebases, or multi-turn histories that approach that limit.
What is Gemini 3.5 Flash best for?
Gemini 3.5 Flash is a balanced tier from Google. It suits agentic workflows, multimodal input, high-volume work. Earlier Flash generation with higher current standard input/output rates than Flash 3.6/3.7/3.8. Compare the applicable pricing tier, dated benchmark settings and announced January 2027 rates for your workload.
Model comparison catalogBenchmark library