Gemini 2.5 Flash

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Data updated on September 30, 2026· 217 models

Google2.5 Flash

Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks.

Reasoning estimated
Speed estimated
Input
Output
Context
1 M tokens
Max output
66 K
Input, $ per 1M tokens
$0.300
Output, $ per 1M tokens
$2.50
Cache read, $ per 1M
$0.030
Batch (input / output)
$0.150 / $1.25
Tool calling
Yes
Released
06/17/2025
Knowledge cutoff
2025-01
API id
google/gemini-2.5-flash

Summary from the data

Gemini 2.5 Flash is a Google model available by API since 06/17/2025. It costs $0.300 per million input tokens and $2.50 per million output tokens, accepts 1 M tokens of context and generates up to 66 K tokens per response. Input: PDF / file, image, text, audio, video; output: text. It has a reasoning mode. It supports tool calling. With 10,000 requests a month of 1,500 input and 400 output tokens it would cost about $14.50 a month.

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What would your product cost?

Estimate the monthly cost with your app's real volume. List prices, no cache or batch discounts.

Gemini 2.5 Flash
$14.50/mo

The 6 cheapest for this scenario (chat, last 12 months)

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  5. 5Ministral 3 3B 2512 Mistral$1.90
  6. 6Qwen3.5-Flash Qwen$2.02

Frequently asked questions

How much does Gemini 2.5 Flash cost per million tokens?

Gemini 2.5 Flash costs $0.300 per million input tokens and $2.50 per million output tokens (USD, list price). Cache read: $0.030. Batch tier: $0.150 / $1.25.

What context window does Gemini 2.5 Flash have?

Gemini 2.5 Flash accepts 1 M tokens of context per request and generates up to 66 K tokens per response.

Does Gemini 2.5 Flash accept images, audio or files?

Input: PDF / file, image, text, audio, video. Output: text.

Does Gemini 2.5 Flash have a reasoning mode and tool calling?

It has a reasoning mode. It supports tool calling.

When was Gemini 2.5 Flash released and what is its knowledge cutoff?

Gemini 2.5 Flash has been available by API since 06/17/2025. Knowledge cutoff: 2025-01.

What would an app built on Gemini 2.5 Flash cost?

With 10,000 requests a month of 1,500 input and 400 output tokens, Gemini 2.5 Flash would cost about $14.50 a month at list price, without cache or batch discounts.

What is the API id of Gemini 2.5 Flash?

The id is google/gemini-2.5-flash. It is the name passed in the model parameter of the API (or on OpenRouter).

Where do the prices come from and how often are they updated?

From the public catalogs of OpenRouter, models.dev and LiteLLM, which publish each provider's list prices. They sync once a day and the last update date is shown above the comparison.

What does price per million tokens mean?

It is what the provider charges per million tokens you send (input) or the model generates (output). A token is roughly 4 characters. Output almost always costs more than input.

Sources: OpenRouter, models.dev and LiteLLM. Prices in USD per million tokens, list price, no volume discounts. Prompt tokens are an estimate; each provider's tokenizer may differ.