Gemini 2.5 FlashvsGemini 3 Flash preview
Both language models, compared at each maker’s own API list prices. Every figure links to its source.
Compare at your usage
Every model priced for the same request8,000 tokens in, 2,000 out
| Gemini 2.5 Flash on Gemini API | Gemini 3 Flash preview on Gemini API | |
|---|---|---|
| Rate applied | Base rate | Base rate |
| Inputper 1M tokens | $0.30 | $0.50 |
| Cache readper 1M tokens | $0.030 | $0.050 |
| Outputper 1M tokens | $2.50 | $3.00 |
| Cost per request | $0.0074 | $0.010 |
| Per 1,000 requests | $7.40 | $10.00 |
- Gemini 2.5 Flash Gemini API pricing · as of Nov 1, 2026
- Gemini 3 Flash preview Gemini API pricing · as of Nov 1, 2026
Every model is priced for the same request at its maker’s own list prices (each with its source and date), so bold marks the cheapest. A model that can’t serve the request is named, not ranked; a condition its seller doesn’t price says which rate was used.
Cost per request as prompts grow
2K tokens out, list price on each maker’s API.
- Gemini 2.5 Flash · Gemini API
- Gemini 3 Flash preview · Gemini API
Key differences
These differences use verified vendor specifications or each maker’s official API on the same region, currency, meter and billing conditions. Different conditions remain side by side in the full table; they do not establish which model is cheaper. Declared features describe support, not measured quality or a recommendation. Missing evidence does not mean a feature is unsupported.
Full comparison
| Gemini 2.5 Flash Google | Gemini 3 Flash preview Google | |
|---|---|---|
| Overview | ||
| Released | Jun 17, 2025 | Dec 17, 2025 |
| Open weights | — | — |
| Knowledge cutoff | Jan 2025 | Jan 2025 |
| Specs | ||
| Context | 1.05M | 1.05M |
| Max output | 65.54K | 65.54K |
| Input modalities | Text, Image, Audio, Video | Text, Image, Video, Audio, PDF |
| Output modalities | Text | Text |
| Reasoning | ||
| Reasoning efforts | low, medium, high | minimal, low, medium, high |
| Reasoning can be off | Not stated | |
| Tool use | ||
| Structured output | ||
| Pricing · per 1M tokens | ||
| Input price | $0.30 | $0.50 |
| Output price | $2.50 | $3.00 |
| Cache read price | $0.030 | $0.050 |
| Blended price (3 input : 1 output) | $0.85 | $1.125 |
| Pricing under conditions · per 1M tokens | ||
| Batch input price | $0.15Batch | $0.25Batch |
| Batch output price | $1.25Batch | $1.50Batch |
| Flex tier input price | $0.15Flex tier | $0.25Flex tier |
| Flex tier output price | $1.25Flex tier | $1.50Flex tier |
| Priority tier input price | $0.54Priority tier | $0.90Priority tier |
| Priority tier output price | $4.50Priority tier | $5.40Priority tier |
| Cited scores | ||
| LMArena Text | 1,409 | — |
| LMArena Text · Coding | 1,424 | — |
| LMArena Vision | 1,236 | — |
| LMArena Text · Chinese | 1,438 | — |
| Epoch AI · GPQA Diamond | — | 89.4% high effort |
| Epoch AI · FrontierMath Tiers 1–3 | — | 51.2% |
| Epoch AI · SWE-bench Verified | — | 75.4% |
Headline prices may come from different channels, regions or tiers. Check each source before choosing a model; missing facts stay blank.
Model details and sources
- Gemini 2.5 Flash → Deprecated · as of Nov 4, 2026 Newer models in this family (our classification): Gemini 3.8 Flash · Gemini 3.6 Flash
- Gemini 3 Flash preview → Preview
Cited scores
- LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · LMArena leaderboard dataset (Hugging Face) · CC BY 4.0 · as of Oct 28, 2026
- LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · LMArena leaderboard dataset (Hugging Face) · CC BY 4.0 · as of Oct 19, 2026
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · Epoch AI Benchmarking Hub data · CC BY 4.0 · as of Nov 5, 2026
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · Epoch AI Benchmarking Hub data · CC BY 4.0 · as of Oct 28, 2026
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · Epoch AI Benchmarking Hub data · CC BY 4.0 · as of Nov 4, 2026
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · Epoch AI Benchmarking Hub data · CC BY 4.0 · as of Oct 7, 2026
- EQ-Bench by Samuel J. Paech (eqbench.com; EQ-bench/EQ-bench-site on GitHub), MIT License. · EQ-Bench: Longform Writing · MIT · as of Oct 28, 2026