Gemini Omni Flash Preview vs Gemini 3.8 Flash

Lower and Larger mark one number at a time; they don’t rank the models. How well a model does depends on your task; see Benchmarks for measured results.

DetailGemini Omni Flash Previewgoogle/gemini-omni-flash-previewGemini 3.8 Flashgoogle/gemini-3.8-flash
Makergooglegoogle
KindChatChat
Input per 1M tokens$1.575$0.7875 Lower
Cached input per 1M tokensNot applicable$0.07875
Cache write per 1M tokensNot applicableSame as input
Output per 1M tokens$9.45$3.9375 Lower
Context window1,000,000 tokens1,000,000 tokens
Max output57,920 tokens65,535 tokens Larger
CapabilitiesReasoning, vision, file input, video generationReasoning, tool use, vision, file input, web search
TakesText, image, pdf, videoText, image, pdf, video
ReturnsText, videoText
Zero data retentionNot on every providerNot on every provider
No training on requestsYes, on every providerYes, on every provider
Released2026-06-302026-09-02

Example costs

Example requests, priced at today’s rates with no cached input.

Example requestGemini Omni Flash PreviewGemini 3.8 Flash
1,000 tokens in, 200 out$0.003465$0.001575
10,000 tokens in, 1,000 out$0.0252$0.011813
100,000 tokens in, 4,000 out$0.1953$0.0945