← All Comparisons
Gemini 3 Flash vs GPT-4o Mini
A detailed comparison of Gemini 3 Flash (Google) and GPT-4o Mini (OpenAI) across pricing, performance, and features.
Pricing Comparison
| Metric | Gemini 3 Flash | GPT-4o Mini | Difference |
|---|---|---|---|
| Input / 1M tokens | $0.50 | $0.15 | -70% |
| Output / 1M tokens | $3.00 | $0.60 | -80% |
| Context window | 1M | 128K | — |
| Max output | 65.536K | 16.384K | — |
Benchmark Comparison
| Benchmark | Gemini 3 Flash | GPT-4o Mini |
|---|---|---|
| MMLU-Pro | 78% | 68% |
| HumanEval | 90% | 87.2% |
Capabilities
| Capability | Gemini 3 Flash | GPT-4o Mini |
|---|---|---|
| code | ✓ | ✓ |
| reasoning | ✓ | ✗ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
Gemini 3 Flash Strengths
- ✓1M context at budget pricing
- ✓Very fast
- ✓Free tier available via Google AI Studio
Gemini 3 Flash Weaknesses
- ✗Less capable than Pro on complex reasoning
- ✗Audio input priced separately ($1/1M)
GPT-4o Mini Strengths
- ✓Extremely cheap
- ✓Fast responses
- ✓Good enough for many production tasks
GPT-4o Mini Weaknesses
- ✗Weaker reasoning than full models
- ✗Can hallucinate more on complex topics
Quick Verdict
Best value: GPT-4o Mini is the more affordable option at $0.15/$0.6 per 1M tokens.
Higher benchmarks: Gemini 3 Flash scores higher on average across available benchmarks (84.0% avg).
Larger context: Gemini 3 Flash supports 1M tokens.
Choose GPT-4o Mini if cost matters most. Choose Gemini 3 Flash if you need the best possible quality for complex tasks.