Gemini 3.5 Flash

ChatInput: TextInput: ImageInput: FileInput: AudioReleased May 19, 2026

Built by Google · United States · deepmind.google

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...

How to use

model: "google/gemini-3.5-flash"

Cap quality here and save

Hard questions go to this model, easy ones drop to something cheaper. Set a savings target (0–0.8) and the router tunes itself until realized savings converge on it.

{
  "model": "celon/auto",
  "celon": {
    "anchor": "google/gemini-3.5-flash",
    "savings_target": 0.4
  }
}

Naming a model directly gets you that model — savings controls don't apply.

Context

1.0M

Max output

66K

Input $/1M

$1.50

Output $/1M

$9.00

Features

Image inputTool callingJSON

Serving providers

GoogleVertex AI

Providers

Price, latency, and uptime per provider serving this model. Celon routes each request to the fastest and cheapest of them. Click a row for regions and data policies.

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Performance

Benchmark quality scores, and measured speed per provider.

Quality

Epoch Capabilities IndexComposite over 50+ benchmarks

154.6

GPQA DiamondPhD-level science questions

92.8%

AIMECompetition mathematics

95.6%

FrontierMathResearch-level mathematics

39.0%

SWE-bench VerifiedReal GitHub issue resolution

79.3%

SciCodeScientific code generation

53.1%

ARC-AGI-2Abstract reasoning

72.1%

SimpleQA VerifiedFactual accuracy

68.4%

At each model's best reasoning effort. Benchmarks it wasn't run on are omitted.

Speed

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