AI Model Watch
Models / Google

Gemini 3.5 Flash

GA

GA/stable. Output token limit reported as 'up to 65,000' on the what's-new page; model spec convention is 65,536 - treated as 65536. The what's-new page describes additional output capabilities (images, audio, structured outputs) but the spec table for the core text model lists text output. Was listed as the recommended replacement for gemini-2.5-flash and the gemini-2.0-flash line; as of the deprecations table read 2026-07-31 that target is gemini-3.6-flash, which is cheaper on output ($7.50 vs $9.00) at the same input price. Context-caching also has a per-hour storage fee not captured here. What's-new page last updated 2026-06-24 UTC.

Gemini 3.5 Flash by Google costs $1.50 per 1M input tokens and $9 per 1M output tokens ($3.38/1M blended), with a 1.0M (1.048.576-token) context window. It is generally available (GA), with a knowledge cutoff of Jan 2025.

Last verified: 13 Aug 2026 · sourced from official provider documentation

Provider
Google
Status
GA
Input price
$1.50 / 1M tokens
Output price
$9 / 1M tokens
Cached input
$0.15 / 1M tokens
Blended price
$3.38 / 1M tokens
Context window
1.048.576 tokens (1.0M)
Max output
65.536 tokens
Modality
text, image, video, audio, pdf
Open weights
No — API only
Knowledge cutoff
2025-01
Released
19 May 2026
API string
gemini-3.5-flash

Source: Google official documentation ↗

See also

Compare Gemini 3.5 Flash head-to-head

Gemini 3.5 Flash vs Gemini 3.1 Flash-Lite→

$3.38 vs $0.563 blended /M · same family

Gemini 3.5 Flash vs Gemini 3.5 Flash-Lite→

$3.38 vs $0.85 blended /M · same family

Gemini 3.5 Flash vs Gemini 3.6 Flash→

$3.38 vs $3 blended /M · same family

FAQ

Gemini 3.5 Flash — questions & answers

How much does Gemini 3.5 Flash cost?

Gemini 3.5 Flash is priced at $1.50 per 1M input tokens and $9 per 1M output tokens ($3.38/1M blended at a 3:1 input-to-output ratio), with cached input at $0.15 per 1M tokens.

What is the context window of Gemini 3.5 Flash?

Gemini 3.5 Flash has a 1.048.576-token context window (1.0M), with up to 65.536 output tokens per request.

Is Gemini 3.5 Flash deprecated?

No — Gemini 3.5 Flash is generally available (GA) and not currently scheduled for deprecation or retirement in our tracker.

Does Gemini 3.5 Flash support image or vision input?

Yes — Gemini 3.5 Flash accepts image input. Listed modalities: text, image, video, audio, pdf.

Can I self-host Gemini 3.5 Flash?

No — Gemini 3.5 Flash is proprietary. Its weights are not publicly released, so it is available only through Google's API (or hosted partners), not for self-hosting.

What is the API model string for Gemini 3.5 Flash?

The API model identifier for Gemini 3.5 Flash is "gemini-3.5-flash" when calling Google's API.

What is Gemini 3.5 Flash's knowledge cutoff?

Gemini 3.5 Flash's training knowledge cutoff is Jan 2025.