Gemini 2.5 Flash
by Google · google/gemini-2.5-flash · #215 cheapest of 422 paid models
Prices updated Sep 19, 2026, 6:21 PM UTC · refreshed hourly
Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks. It includes built-in "thinking" capabilities, enabling it to provide responses with greater...
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Pricing
Input
$0.30
per 1M tokens
Output
$2.50
per 1M tokens
Blended (3:1)
$0.85
3 input : 1 output
Cache read
$0.03
per 1M cached tokens
Cache write
$0.083
per 1M tokens
Cache & batch economics
Effective prices for Gemini 2.5 Flash with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $0.85 | $0.0331 | — |
| 50% | $0.749 | $0.0196 | −41% |
| 90% | $0.668 | $0.0088 | −73% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates for this provider’s batch API. Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.0009 | $0.9 |
| Document summary | 8,000 | 1,000 | $0.0049 | $4.90 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.014 | $14.00 |
| Long-context analysis | 150,000 | 5,000 | $0.0575 | $57.50 |
Performance
Intelligence Index
9.9
AA composite quality
Coding Index
—
Math Index
60.3
Agentic Index
—
Output speed
0 tok/s
median
Time to first token
0s
median
Time to first answer
0s
after reasoning tokens
Artificial Analysis benchmarks
| Benchmark | Score |
|---|---|
| MMLU-Pro | 80.9% |
| GPQA Diamond | 68.3% |
| Humanity's Last Exam | 4.7% |
| LiveCodeBench | 49.5% |
| MATH-500 | 93.2% |
| AIME | 50.0% |
| AIME 2025 | 60.3% |
| IFBench | 39.0% |
| AA-LCR (Long Context Reasoning) | 49.9% |
| Terminal-Bench Hard | 12.1% |
| τ²-Bench (Telecom) | 14.9% |
Design Arena Elo
| Category | Elo |
|---|---|
| Website | 1,127 |
| UI components | 1,108 |
| Data viz | 1,148 |
| SVG | 1,043 |
| 3D | 1,100 |
| Game dev | 1,089 |
| Code categories | 1,119 |
Specs
Context window
1.05M
tokens
Max output
66K
tokens
Input modalities
file, image, text, audio, video
Tokenizer
Gemini