Gemini 2.5 Flash
Google Gemini 2.5 Flash — pricing, 1049k context window, API cost calculator and alternatives.
By Google
Specs
- Provider
- Slug
- google/gemini-2-5-flash
- Capabilities
- vision, tools, json_mode
Pricing freshness
- Tier
- standard
- Currency
- USD
- As of
- 2026-05-08 17:08 UTC
Pricing history
Tracking Gemini 2.5 Flash pricing since 2026-05-08. We'll plot the chart here once it changes.
Quickstart — call Gemini 2.5 Flash from your app
curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-2-5-flash:generateContent" \
-H "Content-Type: application/json" \
-H "x-goog-api-key: $GOOGLE_API_KEY" \
-d '{
"contents": [{"parts": [{"text": "Hello!"}]}]
}'Official docs: https://ai.google.dev/api/generate-content
# pip install google-genai
from google import genai
client = genai.Client() # reads GOOGLE_API_KEY from env
resp = client.models.generate_content(
model="gemini-2-5-flash",
contents="Hello!",
)
print(resp.text)Official docs: https://ai.google.dev/api/generate-content
// npm install @google/genai
import { GoogleGenAI } from "@google/genai";
const ai = new GoogleGenAI({ apiKey: process.env.GOOGLE_API_KEY });
const resp = await ai.models.generateContent({
model: "gemini-2-5-flash",
contents: "Hello!",
});
console.log(resp.text);Official docs: https://ai.google.dev/api/generate-content
Related models
Similar capabilities, context window, and price tier — drawn from across the catalog so you can compare alternatives in one click.
Frequently asked questions
What is Gemini 2.5 Flash?
Gemini 2.5 Flash is a large language model API from Google with a 1M-token context window. It costs $0.3 per 1M input tokens and $2.5 per 1M output tokens.
How much does Gemini 2.5 Flash cost?
Gemini 2.5 Flash is priced at $0.3 per 1M input tokens and $2.5 per 1M output tokens via the Google API. A 50/50 input/output workload of 1M total tokens costs about $1.4.
What is the context window of Gemini 2.5 Flash?
Gemini 2.5 Flash supports up to 1M tokens of context per request — roughly 2097 pages of English text or 131072 lines of code at a typical density.
Does Gemini 2.5 Flash support vision, tool use, or JSON mode?
Gemini 2.5 Flash supports vision, tool/function calling, and structured JSON mode.
Who makes Gemini 2.5 Flash?
Gemini 2.5 Flash is built and operated by Google. Pricing, context window, and capabilities on this page are refreshed nightly from Google's public catalog.
Can I self-host Gemini 2.5 Flash?
Gemini 2.5 Flash is API-only — its weights are not publicly distributed by Google, so it cannot be self-hosted today.