Gemini 2.5 Pro Preview 06-05 vs GPT-5 Codex
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Gemini 2.5 Pro Preview 06-05 vs GPT-5 Codex: side by side
| Spec | Gemini 2.5 Pro Preview 06-05 | GPT-5 Codex | Winner |
|---|---|---|---|
| Intelligence | — | 36.1 | Tie |
| Output speed | — | 158 t/s | Tie |
| Output price | $10.00/1M | $10.00/1M | Tie |
| Context | 1049K | 400K | Gemini 2.5 Pro Preview 06-05 |
| Params | — | — | Tie |
| Provider | OpenAI | Tie |
Gemini 2.5 Pro Preview 06-05
Pros
- +Handles extremely long inputs effectively
- +Strong integration of text, image, audio and files
- +Solid performance on reasoning and coding tasks
Cons
- –Preview release may show occasional instability
- –Slower responses with maximum context sizes
- –Less optimized for real-time voice conversations
GPT-5 Codex
Pros
- +Handles extremely large inputs effectively
- +Strong coding specialization
- +Unified text and image reasoning
Cons
- –High resource demands with maximum context
- –Limited to text and static images
- –Potential coherence loss in very long outputs
Frequently asked questions
It depends on your needs. Gemini 2.5 Pro Preview 06-05 and GPT-5 Codex are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.