Gemini 2.5 Flash
Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks.
Gemini 2.5 Flash is scheduled to be retired on October 20, 2026. Consider Gemini 3.8 Flash instead.
At a glance
- Input / 1M
- $0.30
- Output / 1M
- $2.50
- Context
- 1.05M
- Max output
- 66K
- Intelligence
- 15.5
- Released
- Jun 2025
Pricing
Gemini 2.5 Flash API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $0.30 |
|---|---|
| Output tokensPer 1M tokens | $2.50 |
| Cached input (read)Per 1M tokens | $0.03 |
| Cache writePer 1M tokens | $0.08 |
| Web searchPer request | $0.014 |
Chat message
2K in, 500 out
$1.85
per 1,000 requests
Coding task
30K in, 4K out
$19
per 1,000 requests
Long document summary
150K in, 2K out
$50
per 1,000 requests
Benchmarks
Gemini 2.5 Flash benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
15.5
Coding index
Not available
Agentic index
Not available
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 1.05M tokens
- Max output
- 66K tokens
- Input types
- Audio, File, Image, Text, Video
- Output types
- Text
- Reasoning effort
- Not available
- Release date
- June 17, 2025
- Knowledge cutoff
- January 31, 2025
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
Gemini 2.5 Flash vs other models
See how Gemini 2.5 Flash stacks up head to head on price, benchmarks, and features.
VSGemini 2.5 Flash vs Step 5 Preview
Google vs StepFun
See comparisonVSGemini 2.5 Flash vs Gemini 3.1 Flash Lite
Google vs Google
See comparisonVSGemini 2.5 Flash vs Gemma 4 31B
Google vs Google
See comparisonVSGemini 2.5 Flash vs Gemma 4 26B A4B
Google vs Google
See comparisonVS
Gemini 2.5 Flash vs Claude Haiku 4.5
Google vs Anthropic
See comparisonVSGemini 2.5 Flash vs Gemini 3.5 Flash Lite
Google vs Google
See comparisonMore Gemini 2.5 Flash comparisons
- Gemini 2.5 Flash vs Gemini 2.5 Pro
- Gemini 2.5 Flash vs Muse Glimmer 30B
- Gemini 2.5 Flash vs GLM 4.6
- Gemini 2.5 Flash vs R1 0528
- Gemini 2.5 Flash vs Qwen3.5-122B-A10B
- Gemini 2.5 Flash vs Kimi K2 0905
- Gemini 2.5 Flash vs Mistral Medium 3.5
- Gemini 2.5 Flash vs o4 Mini
- Gemini 2.5 Flash vs DeepSeek V3.1 Terminus
- Gemini 2.5 Flash vs Nova 2 Lite
- Gemini 2.5 Flash vs Command A
- Gemini 2.5 Flash vs GLM 4.5
- Gemini 2.5 Flash vs Kimi K2 0711
- Gemini 2.5 Flash vs Qwen3 235B A22B Thinking 2507
- Gemini 2.5 Flash vs o3 Mini
- Gemini 2.5 Flash vs MiniMax M1
- Gemini 2.5 Flash vs R1
Alternatives
Gemini 2.5 Flash alternatives
Similar models worth considering, and where each one has the edge.
Gemini 3.5 Flash Lite
Qwen
Qwen3.5-122B-A10B
Anthropic
Claude Haiku 4.5
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does Gemini 2.5 Flash cost?
Gemini 2.5 Flash costs $0.30 per 1M input tokens and $2.50 per 1M output tokens through the API. A typical chat message costs about $1.85 per 1,000 messages.
What is the context window of Gemini 2.5 Flash?
Gemini 2.5 Flash accepts up to 1.05M tokens of input and can write up to 66K tokens in a single response.
What is the best alternative to Gemini 2.5 Flash?
Gemini 3.5 Flash Lite from Google is a strong alternative. It offers: higher intelligence score, newer release.
Can I use Gemini 2.5 Flash alongside other models?
Yes. Shortcut Chat sends one prompt to Gemini 2.5 Flash and any other models you pick at the same time, so you can compare answers side by side.
Try Gemini 2.5 Flash next to every other model.
Use Gemini 2.5 Flash alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.