Gemini 2.5 Flash-Lite vs OpenAI o4-mini
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Google · Jul 2025
Ten cents per million input tokens with multimodal support — the price floor of the 2025 Gemini lineup.
OpenAI · Apr 2025
A compact reasoning model that punched far above its price on math — 92.7% on AIME 2025 at $1.10 per million input tokens.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Gemini 2.5 Flash-Lite works out roughly 11x cheaper per blended million tokens. Gemini 2.5 Flash-Lite also takes 1.0M of context versus 200K for OpenAI o4-mini.
Specs & pricing
| Gemini 2.5 Flash-Lite | OpenAI o4-mini | |
|---|---|---|
| modhub Index | — | 80.9 |
| Input price / 1M | $0.1 | $1.1 |
| Output price / 1M | $0.4 | $4.4 |
| Context window | 1.0M | 200K |
| Max output | 66K | 100K |
| Open weights | no | no |
| Reasoning model | no | yes |
| Multimodal input | text, image, audio, video | text, image |
| Knowledge cutoff | Jan 2025 | May 2024 |
| Released | Jul 2025 | Apr 2025 |
| Example monthly cost* | $1.60 | $17.60 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Gemini 2.5 Flash-Lite or OpenAI o4-mini?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Gemini 2.5 Flash-Lite works out roughly 11x cheaper per blended million tokens. Gemini 2.5 Flash-Lite also takes 1.0M of context versus 200K for OpenAI o4-mini.
- Which is cheaper, Gemini 2.5 Flash-Lite or OpenAI o4-mini?
- Gemini 2.5 Flash-Lite costs $0.1/$0.4 per million input/output tokens, while OpenAI o4-mini costs $1.1/$4.4. For a typical workload of 10M input and 1.5M output tokens per month, that's $1.60 versus $17.60.
- Which model is better for coding, Gemini 2.5 Flash-Lite or OpenAI o4-mini?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.