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GPT-5 mini vs Gemini 2.5 Pro
OpenAI vs Google Gemini — head-to-head specs and pricing.
OpenAI
GPT-5 mini
Fast, cheap, still smart.
GPT-5 mini is a smaller variant of GPT-5 optimized for throughput and cost. Great default for chat and classification.
Google Gemini
Gemini 2.5 Pro
Google's top multimodal model.
Gemini 2.5 Pro — strong reasoning, 2M context, native multimodal (text, image, video, audio).
| Spec | GPT-5 mini | Gemini 2.5 Pro |
|---|---|---|
| Provider | OpenAI | Google Gemini |
| Input cost / 1M tokens | $0.18 | $1.50 |
| Output cost / 1M tokens | $0.72 | $6.00 |
| Context window | 128,000 tokens | 2,000,000 tokens |
| Max output tokens | 8,000 | 8,000 |
| Streaming support | ✓ | ✓ |
| Tool calling | ✓ | ✓ |
| Vision input | ✓ | ✓ |
| JSON mode | ✓ | — |
| Status | ACTIVE | ACTIVE |
Use both via OneAPIKey — one key, one bill
OneAPIKey aggregates OpenAI, Google Gemini, and 10 more providers behind a single API. Smart Routing automatically picks the best model per request — or you choose explicitly.
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