Calculate the cost of using gemini-3.5-flash from OpenRouter for your AI applications
Pricing data last updated:
Mode: Chat
Max: 1,048,576 tokens
Max: 65,536 tokens
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gemini-3.5-flash is a chat model from OpenRouter, one of 347 chat models they offer. It is priced at $1.50 per 1M input tokens and $9.00 per 1M output tokens, ranking 1593 out of 2168 chat models by cost and cheaper than 26% of models in this category. gemini-3.5-flash supports vision, function calling, reasoning, audio input, prompt caching, structured output — one of only 11 chat models with this combination. Its 1,049K-token context window is in the top 6% among chat models.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 1,048,576 input tokens. The maximum output length is 65,536 tokens.
At $1.50 per 1M input tokens and $9.00 per 1M output tokens, gemini-3.5-flash ranks 1593 out of 2168 chat models by input cost. It is more expensive compared to the median of $0.55 for chat models, and is cheaper than 26% of models in this category.
gemini-3.5-flash is one of 347 OpenRouter chat models, one of only 11 chat models combining audio input, function calling, prompt caching, reasoning, structured output, vision. its 1,049K-token context window places it in the top 6% of chat models.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs gemini-3.5-flash |
|---|---|---|---|---|
| gemini-2.5-pro | Vertex AI | $1.25 | $10.00 | -17% |
| gemini-3.5-flash | Vertex AI | $1.50 | $9.00 | 0% |
| gemini-2.5-pro | Google Gemini | $1.25 | $10.00 | -17% |
Similar chat models from other providers
No. gemini-3.5-flash costs $1.50 per 1M input tokens while gemini-2.5-pro costs $1.25 per 1M input tokens, making gemini-2.5-pro 17% more affordable for input. However, gemini-3.5-flash may offer different capabilities or performance characteristics that justify the price difference.
gemini-3.5-flash input pricing is $1.50 per 1M tokens, which is 173% above the median of $0.55 for chat models. It ranks 1593 out of 2168 chat models by input cost, making it cheaper than 26% of models in this category. For output, it costs $9.00 per 1M tokens compared to the median of $1.44.
Among OpenRouter's 347 chat models, gemini-3.5-flash ranks 259 by input cost. Its combination of audio input, function calling, prompt caching, reasoning, structured output, vision is shared by only 10 other chat models.
The most comparable chat models to gemini-3.5-flash are: gemini-2.5-pro from Vertex AI ($1.25/1M input tokens); gemini-3.5-flash from Vertex AI ($1.50/1M input tokens); gemini-2.5-pro from Google Gemini ($1.25/1M input tokens); gemini-3.5-flash from Google Gemini ($1.50/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
gemini-3.5-flash supports up to 1,048,576 input tokens, placing it in the top 6% of chat models by context window size (rank 109 of 2093). This makes it suitable for processing long documents, extensive code repositories, or maintaining detailed conversation histories.
You can monitor OpenRouter service health in real time on the Bifrost OpenRouter Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.
gemini-3.5-flash is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $1.50 and generating 1M output tokens costs $9.00.
