Model comparison
Gemini 2.5 Flash-Lite vs o1-pro
Gemini 2.5 Flash-Lite is the stronger model overall, scoring 37.0 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
GoogleSummary
- Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $150 / $600 for o1-pro.
- Gemini 2.5 Flash-Lite accepts more context: 1.05M tokens versus 200K.
Side by side
| Gemini 2.5 Flash-Lite | o1-pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 37.0 | 31.5 |
| Released | 2025-06-17 | 2025-03-19 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 200K |
| Max output | 66K | 100K |
| Input $ / M tokens | $0.10 | $150 |
| Output $ / M tokens | $0.40 | $600 |
| Results tracked | 33 | 3 |
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Category by category
Coding Not comparable
Gemini 2.5 Flash-Lite: 38.5 (#173), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| WeirdML | 35.2% | — |
| LMArena Coding | 1373 | — |
| ALE-Bench | 325.9 | — |
Agentic & Tool Use Not comparable
Gemini 2.5 Flash-Lite: 28.0 (#96), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| Berkeley Function Calling Leaderboard | 36.9% | — |
Reasoning Gemini 2.5 Flash-Lite leads
Gemini 2.5 Flash-Lite: 22.2 (#205), o1-pro: 20.4 (#239)
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| Kagi LLM Benchmark | 40.5% | — |
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| LMArena Hard Prompts | 1377 | — |
| DTBench | 62.8% | — |
| LMCA | 18.1% | — |
| Epoch Capabilities Index | 133.94 | — |
Math Not comparable
Gemini 2.5 Flash-Lite: 38.0 (#144), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| Omni-MATH | 48% | — |
| LMArena Math | 1373 | — |
Knowledge Gemini 2.5 Flash-Lite leads
Gemini 2.5 Flash-Lite: 32.5 (#210), o1-pro: 29.7 (#234)
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |
| MMLU-Pro | 53.7% | — |
| Vectara Hallucination Rate | 3.3% | — |
| GPQA (HELM) | 30.9% | — |
| LMArena Expert | 1373 | — |
Multimodal Not comparable
Gemini 2.5 Flash-Lite: 29.1 (#114), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| LMArena Vision | 1198 | — |
| VPCT | 30% | — |
Multilingual Not comparable
Gemini 2.5 Flash-Lite: 49.3 (#134), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| LMArena Non-English | 1369 | — |
| LMArena Chinese | 1404 | — |
| LMArena French | 1388 | — |
| LMArena German | 1389 | — |
| LMArena Japanese | 1359 | — |
| LMArena Korean | 1360 | — |
| LMArena Russian | 1373 | — |
| LMArena Spanish | 1396 | — |
Instruction Following Not comparable
Gemini 2.5 Flash-Lite: 70.0 (#168), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| IFEval | 81% | — |
| LMArena Instruction Following | 1367 | — |
Long Context Not comparable
Gemini 2.5 Flash-Lite: 33.3 (#262), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| Fiction.LiveBench | 47.2% | — |
| LMArena Longer Query | 1373 | — |
Writing & Preference Not comparable
Gemini 2.5 Flash-Lite: 56.8 (#135), o1-pro: —
| Benchmark | Gemini 2.5 Flash-Lite | o1-pro |
|---|---|---|
| LMArena Text | 1379 | — |
| LMArena Creative Writing | 1367 | — |
| WildBench | 81.8% | — |
| LMArena Multi-Turn | 1366 | — |
Frequently asked questions
Is Gemini 2.5 Flash-Lite better than o1-pro?
Gemini 2.5 Flash-Lite is the stronger model overall, scoring 37.0 to 31.5 on the Noometry Index.
Which is cheaper, Gemini 2.5 Flash-Lite or o1-pro?
Gemini 2.5 Flash-Lite is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; o1-pro lists at $150 and $600.
Which has the bigger context window?
Gemini 2.5 Flash-Lite does, with 1.05M tokens against 200K.
How many benchmarks do Gemini 2.5 Flash-Lite and o1-pro share?
0 benchmarks have published results for both models. Gemini 2.5 Flash-Lite has 33 scored results on Noometry and o1-pro has 3.