Gemini 3.5 Flash
Google · Proprietary · Released May 19, 2026 · google/gemini-3.5-flash
Best $1.50 in / $9.00 out via Google
1.05M contextVisionToolsReasoningStructured outputPrompt cachingAudio input
Available from 7 providersUSD / MTOK · PRICES 23 MINUTES AGO · SPEED 15 MINUTES AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
 GoogleFLEX1ST PARTY | $0.75 | $4.50 | $0.075 | 1.05M | — | 1.5s° | 285° tok/s | 100.0% |
 Google AI StudioFLEX | $0.75 | $4.50 | $0.075 | 1.05M | — | 1.8s | 2130 tok/s | 100.0% |
| Google1ST PARTY | $1.50 | $9.00 | $0.15 | 1.05M | — | — | — | 99.9% |
| Google AI Studio | $1.50 | $9.00 | $0.15 | 1.05M | — | — | — | 77.0% |
| Google1ST PARTY | $1.65 | $9.90 | $0.165 | 1.05M | — | — | — | 100.0% |
| GooglePRIORITY1ST PARTY | $2.70 | $16.20 | $0.27 | 1.05M | — | — | — | 100.0% |
| Google AI StudioPRIORITY | $2.70 | $16.20 | $0.27 | 1.05M | — | — | — | 100.0% |
TTFT/TPS: median (P50) over trailing 504h · chat10k profile (~10K in / 200 out) · measured against the provider API directly; ° = routed via OpenRouter (adds a hop) · methodology v1.1 · measured 15 minutes ago
SERVE THIS MODEL AND NOT LISTED? LIST YOUR INFERENCE →
Quality benchmarksCURATED AUG 24, 2026
Third-party reported results, hand-curated with sources — not measured by ModelIndex. Our own measured serving data (TTFT/TPS/SMOKE) is in the providers table above.
Pricing variants · USD / MTok in / out
STANDARD
$1.50 / $9.00
per MTok in / out
BATCH
$0.75 / $4.50
async batch
CACHE READ $0.15CACHE WRITE $0.083WEB SEARCH $0.014 / search
Recent changesRSS ↗
Oct 6, 2026endpoint removed · cheaperinference9 → 7
Sep 23, 2026endpoint added · cheaperinference7 → 9
About
Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...
Specifications
Context window1,048,576
Max output65,536
Modalities intext, image, video, file, audio
Modalities outtext
LicenseProprietary
ReleasedMay 19, 2026
Knowledge cutoff2025-01-01
TokenizerGemini
Related
Embed badge
[](https://modelindex.ai/models/google/gemini-3.5-flash)Sources
OpenRouter API23 minutes ago
AGGREGATORLiteLLM dataset23 minutes ago
AGGREGATORModelIndex benchmarks15 minutes ago
MEASUREDVerified 23 minutes ago · list prices, not negotiated rates.