GPT-5.4 Pro vs GPT-5 Mini
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.
Quick verdict: which should you choose?
Choose GPT-5.4 Pro if you need
- ✓Choose GPT-5.4 Pro if you need 1,050,000-token context for very large text, image, and file inputs.
- ✓Choose GPT-5.4 Pro if you need advanced reasoning over extended multimodal contexts.
- ✓Choose GPT-5.4 Pro if you need versatile document and visual task handling with strong modality integration.
Choose GPT-5 Mini if you need
- ✓Choose GPT-5 Mini if you need $2 per million output tokens instead of $180.
- ✓Choose GPT-5 Mini if you need 96.77 t/s output speed with known intelligence index of 30.9.
- ✓Choose GPT-5 Mini if you need efficient handling of massive contexts in complex multi-turn tasks.
Verdict
GPT-5.4 Pro leads on maximum context length and advanced reasoning depth for large-scale multimodal inputs, while GPT-5 Mini dominates on price and measured output speed. The Pro model offers 1,050,000-token context versus Mini's 400,000 and emphasizes stronger integration over extended contexts, yet carries a $180 per million output price against Mini's $2. Mini provides concrete speed data at 96.77 t/s and an intelligence index of 30.9 where Pro lists unknowns, making it the practical choice for most high-volume tasks.
GPT-5.4 Pro vs GPT-5 Mini: side by side
| Spec | GPT-5.4 Pro | GPT-5 Mini | Winner |
|---|---|---|---|
| Intelligence | — | 30.9 | Tie |
| Output speed | — | 100 t/s | Tie |
| Output price | $180.00/1M | $2.00/1M | GPT-5 Mini |
| Context | 1050K | 400K | GPT-5.4 Pro |
| Params | — | — | Tie |
| Provider | OpenAI | OpenAI | Tie |
Detailed analysis
Context Window
Winner: GPT-5.4 ProGPT-5.4 Pro provides 1,050,000 tokens compared with GPT-5 Mini's 400,000 tokens. This gives Pro the edge for very large inputs across text, image, and file modalities. Mini still supports massive contexts but at a smaller scale.
Pricing
Winner: GPT-5 MiniGPT-5 Mini costs $2 per million output tokens while GPT-5.4 Pro costs $180 per million. The 90x price difference favors Mini for cost-sensitive or high-volume usage. Both are proprietary OpenAI models with usage constraints.
Speed & Latency
Winner: GPT-5 MiniGPT-5 Mini reports 96.77 t/s output speed; GPT-5.4 Pro lists unknown speed but notes higher latency on maximum-length inputs. Mini's measured speed and compact design support faster responses on large contexts. Pro's latency drawback appears only at its longest inputs.
Reasoning Depth
Winner: GPT-5.4 ProGPT-5.4 Pro highlights advanced reasoning over extended contexts and strong modality integration. GPT-5 Mini notes reduced depth on highly complex reasoning versus full-size models. Both integrate text, image, and file inputs but Pro is positioned for deeper analysis.
GPT-5.4 Pro
Pros
- +Handles very large inputs across modalities
- +Strong integration of text, image, and file data
- +Advanced reasoning over extended contexts
Cons
- –Higher latency on maximum-length inputs
- –No native audio or video support
- –Proprietary access with usage constraints
GPT-5 Mini
Pros
- +Handles very large contexts efficiently
- +Integrates text, image, and file inputs
- +Suitable for complex multi-turn tasks
Cons
- –Reduced depth on highly complex reasoning vs full-size models
- –Performance depends on input clarity across modalities
- –May require careful prompting for nuanced outputs
Summary: GPT-5.4 Pro vs GPT-5 Mini
Select GPT-5.4 Pro when maximum context size and advanced multimodal reasoning are required despite the high cost. Choose GPT-5 Mini for speed, affordability, and efficient large-context performance in most practical scenarios. The models share the same provider and lack of native audio or video support.
Frequently asked questions
GPT-5.4 Pro is better for maximum context and advanced reasoning; GPT-5 Mini is better for speed and price.