Last refreshed 2026-06-15. Next refresh: weekly.
Why use Gemini 3.5 Flash on OpenRouter?
OpenRouter offers Gemini 3.5 Flash with pay-as-you-go pricing at $1.50/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Gemini 3.5 Flash across 4 providers to find the best fit for your use caseInput / 1M
$1.50
Output / 1M
$9.00
Cache
Not sourced
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: google/gemini-3.5-flashModel ID
google/gemini-3.5-flashRequest example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
google/gemini-3.5-flash.Gotchas
- Use provider model ID "google/gemini-3.5-flash", not the LLMReference slug "gemini-3.5-flash".
Compare Gemini 3.5 Flash Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $1.50 | $9.00 |
| GCP Vertex AI | $1.50 | $9.00 |
| Vercel AI Gateway | $1.50 | $9.00 |
| OpenRouter | $1.50 | $9.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.50 |
| Output tokens | $9.00 |
| Image input | $1.00 |
| Video input | $1.00 |
| Audio input | $1.00 |
Capabilities
VisionMultimodalReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt CachingBatch APIAudio
About Gemini 3.5 Flash
Gemini 3.5 Flash is Google DeepMind's generally available Flash model for sustained frontier-level performance on agentic and coding tasks. It supports multimodal inputs, native thinking, tool and function calling, structured outputs, code execution, search grounding, batch processing, and long contexts up to 1M tokens.
Get Started
Model Specs
Released2026-05-19
Context1.05m
ArchitectureDecoder Only
Knowledge cutoff2025-01