token.app › Compare › GPT-5 Mini vs Gemini 3.5 Flash Lite
GPT-5 Mini vs Gemini 3.5 Flash Lite
GPT-5 Mini leads on 3 of 4 shared benchmarks. GPT-5 Mini is 1.2× cheaper per token on a blended 3:1 basis. Gemini 3.5 Flash Lite accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-5 Mini | Gemini 3.5 Flash Lite | |
|---|---|---|
| Provider | OpenAI | |
| Input $/1M | $0.250 | $0.300 |
| Output $/1M | $2.00 | $2.50 |
| Blended $/1M | $0.688 | $0.850 |
| Context window | 400K | 1.0M |
| Max output | 128K | 66K |
| Released | Aug 2025 | Jul 2026 |
| Licence | Proprietary | Proprietary |
| GPQA Diamond | 75.0% | 83.3% |
| FrontierMath T1–3 | 46.7% | 26.0% |
| FrontierMath T4 | 12.2% | 0.0% |
| OTIS Mock AIME | 86.7% | 71.1% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose GPT-5 Mini if…
- Costs less per token — $0.688 vs $0.850 blended
- Higher FrontierMath T1–3 (46.7% vs 26.0%)
- Higher FrontierMath T4 (12.2% vs 0.0%)
- Higher OTIS Mock AIME (86.7% vs 71.1%)
Choose Gemini 3.5 Flash Lite if…
- Higher GPQA Diamond (83.3% vs 75.0%)
- Larger context window (1.0M)
- Newer model (released Jul 2026)
FAQ
Which is better, GPT-5 Mini or Gemini 3.5 Flash Lite?
Across the 4 benchmarks both models have independently-run scores for, GPT-5 Mini leads on 3 and Gemini 3.5 Flash Lite leads on 1. Benchmarks are one input — price and context window are on this page too.
Is GPT-5 Mini cheaper than Gemini 3.5 Flash Lite?
GPT-5 Mini is cheaper: $0.688 versus $0.850 per million tokens blended at 3:1 input:output. Input alone: $0.250 vs $0.300. Output alone: $2.00 vs $2.50.
What context windows do GPT-5 Mini and Gemini 3.5 Flash Lite have?
GPT-5 Mini: 400,000 tokens. Gemini 3.5 Flash Lite: 1,048,576 tokens.
Who makes GPT-5 Mini and Gemini 3.5 Flash Lite?
GPT-5 Mini is made by OpenAI. Gemini 3.5 Flash Lite is made by Google.