Gemini 2.5 Flash Lite
Gemini 2.5 Flash Lite is the fastest and most affordable model in the Gemini 2.5 family, with configurable thinking, a context window of 1.0M tokens, and benchmark improvements over 2.0 Flash-Lite across coding, math, and science, at a price designed for high-throughput agentic pipelines.
- Input and output price
- Prices from: Input $0.10, Output $0.40, Per 1M tokens
- 24h uptime
- Loading AI Gateway uptime
import { streamText } from 'ai'
const result = streamText({ model: 'google/gemini-2.5-flash-lite', prompt: 'Why is the sky blue?'})Copy link to headingProviders
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
Copy link to headingPlayground
Try out Gemini 2.5 Flash Lite by Google. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.
Gemini 2.5 Flash Lite
Gemini 2.5 Flash Lite
Copy link to headingUptime24 hours
Direct request success rate on AI Gateway and per-provider. Visit the docs for more info.
Copy link to headingThroughput24 hours
P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.
Copy link to headingLatency24 hours
P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.
Copy link to headingMore models by Google
| Model |
|---|
| 1M | 1.3 s | 399 tps | $0.75/M | $3.75/M | Read$0.08/M | $14/K+1 more | +3 |  | 09/02/2026 | |||||
| 1M | 0.8 s | 269 tps | $0.75/M | $3.75/M | Read$0.08/M | $14/K+1 more | +3 | | 08/13/2026 | |||||
| 1M | 0.4 s | 247 tps | $0.30/M | $2.50/M | Read$0.03/M | $14/K+1 more | +3 | | 07/21/2026 | |||||
| 1M | 1.5 s | 159 tps | $1.50/M | $9/M | Read$0.15/M | $14/K+1 more | +3 | | 05/19/2026 | |||||
| 1M | 0.4 s | 225 tps | $0.25/M | $1.50/M | Read$0.03/M | $14/K+1 more | +3 | | 05/07/2026 | |||||
| 1M | 0.6 s | 181 tps | $0.50/M+1 more | $3/M+1 more | Read$0.05/M | $14/K+1 more | +3 | | 12/17/2025 |
Copy link to headingAbout Gemini 2.5 Flash Lite
Gemini 2.5 Flash Lite is the efficiency tier of the Gemini 2.5 family, released June 17, 2025 alongside 2.5 Flash and 2.5 Pro going to general availability. It runs faster and costs less than any other 2.5 model while outperforming 2.0 Flash-Lite on benchmarks that matter for real-world developer tasks: coding, mathematics, scientific reasoning, and instruction following.
Configurable thinking is the feature that most distinguishes Gemini 2.5 Flash Lite from 2.0 Flash-Lite. At inference time, you set a thinking level (minimal, low, medium, or high) to allocate more deliberation to harder problems without switching endpoints. This is the same thinking mechanism available in 2.5 Flash and 2.5 Pro, scaled down to the lite budget. For tasks that occasionally need more reasoning depth than a pure speed-first model provides, the thinking toggle avoids the cost jump of routing to a full reasoning model.
For teams running 2.0 Flash-Lite in production and evaluating a 2.5 upgrade path, Gemini 2.5 Flash Lite is the migration-friendly choice: better benchmark performance, thinking capability, and latency that matches or beats the previous generation.
Copy link to headingWhat To Consider When Choosing a Provider
- Configuration: Applications using the thinking feature should benchmark total token cost under realistic thinking budgets, as thinking tokens contribute to output costs.
- Zero Data Retention: Zero Data Retention is available for this model. It is offered on a per-provider and model basis. See the documentation for details.
- Authentication: AI Gateway authenticates requests using an API key or OIDC token. You do not need to manage provider credentials directly.
Copy link to headingWhen to Use Gemini 2.5 Flash Lite
Best for
- High-volume agentic pipelines needing occasional reasoning: The thinking toggle allows selective deliberation on harder steps without paying full 2.5 Flash prices for every call in the pipeline
- Migrating from 2.0 Flash-Lite: Benchmark improvements across coding and math mean the upgrade delivers measurable quality gains on common developer tasks at comparable cost
- Latency-sensitive applications within the 2.5 family: When 2.5 Flash or 2.5 Pro latency is too high for the user experience, Flash-Lite provides 2.5-generation quality at the fastest 2.5 response times
- Translation, classification, and data extraction at scale: Strong instruction following and fast response make it a reliable workhorse for structured-output production tasks
Consider alternatives when
- Maximum reasoning depth is required: 2.5 Flash or 2.5 Pro with uncapped thinking budget is more appropriate for the most complex multi-step problems
- Image generation is needed: Gemini 2.5 Flash Lite does not generate images. Gemini models with native image output are available in the 2.5 Flash Image and 3.x families
- Your workload is pure annotation/extraction without reasoning: For text-output-only extraction at maximum cost efficiency, 2.0 Flash-Lite's lower price floor may be preferable
Copy link to headingConclusion
Gemini 2.5 Flash Lite closes the gap between 2.0 Flash-Lite and the full 2.5 Flash tier. It delivers better benchmark performance and thinking capability at the same latency profile teams already depend on. For 2.0 Flash-Lite users, it's the natural upgrade.