Deprecated on Feb 17, 2026. 2 providers still list it at the prices below.
Context
1M
Max output
66K
Serving providers
2
Cheapest input
$0.30 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Benchmarks

independent evaluations · source: Artificial Analysis
Headline indices
Individual benchmarks · click a row for effort variants
BenchmarkBest scoreEffortCost / task
CritPt0%reasoning: true—
GPQA Diamond79%reasoning: true—
Humanity's Last Exam14%reasoning: true—
IFBench52%reasoning: true—
LiveCodeBenchArtificial Analysis did not report this score in its latest run on Oct 14, 202671%——
Long-Context Reasoning71%reasoning: true—
MMLU-ProFrozen Aug 18, 202684%reasoning: true—
MMMU-Pro73%reasoning: true—
Omniscience-36.1reasoning: true—
Omniscience Accuracy0.3reasoning: true—
Omniscience Non Hallucination0.1reasoning: true—
SciCodeArtificial Analysis did not report this score in its latest run on Oct 14, 202641%——
TerminalBench Hard17%reasoning: true—
τ²-bench46%reasoning: true—
Artificial Analysis last published scores for this benchmark on Aug 18, 2026. Scores here are frozen at that date, and models released since are not on it.

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
GoogleCheapest$0.30$2.501
Standardgemini/gemini-2.5-flash-preview-09-2025
ComponentUnitStandard
Text cached in/1M tok$0.03
Text input/1M tok$0.30
Text output/1M tok$2.50
Vertex AI Language Models$0.30$2.501

Price history

listed seller prices, input and output per 1M tokens
Input Output
$0.00$1.00$2.00$3.00Sep 26Jun 22Aug 28$2.50$0.30

Cost calculator

estimate your monthly spend on this model
$260
estimated / month

Model IDs

copy the exact identifier for your platform
gemini-2.5-flash-preview-09-2025gemini/gemini-2.5-flash-preview-09-2025

Frequently asked questions

Gemini 2.5 Flash Preview 09 2025 pricing, context and availability

Is Gemini 2.5 Flash Preview 09 2025 still available?

Gemini 2.5 Flash Preview 09 2025 was deprecated on 2026-02-17, but 2 serving providers still list it.

How much does Gemini 2.5 Flash Preview 09 2025 cost?

Gemini 2.5 Flash Preview 09 2025 costs $0.30 per 1M input tokens from Google, and $2.50 per 1M output tokens from Google.

What is the context window of Gemini 2.5 Flash Preview 09 2025?

Gemini 2.5 Flash Preview 09 2025 accepts up to 1M tokens of context and can return up to 66K output tokens.

Which providers serve Gemini 2.5 Flash Preview 09 2025?

Gemini 2.5 Flash Preview 09 2025 is available from 2 serving providers, each with its own pricing and model ID. Google is currently the cheapest.

What can Gemini 2.5 Flash Preview 09 2025 do?

Gemini 2.5 Flash Preview 09 2025 supports image input (vision), tool use, reasoning, prompt caching, structured output and web search.

Other Google models

compare pricing across the Google lineup
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Sep 22, 2026

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