GPT-5.4 Mini vs GPT-5.4 Pro
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 Mini if you need
- ✓Choose GPT-5.4 Mini if you need a known output speed of 170.35 t/s at $4.5 per million tokens.
- ✓Choose GPT-5.4 Mini if you need a 400k context window with native file, image, and text support for document-heavy tasks.
- ✓Choose GPT-5.4 Mini if you need flexible multimodal workflows without maximum-length latency penalties.
- ✓Choose GPT-5.4 Mini if you need an intelligence index of 40 with lower overall usage cost.
Choose GPT-5.4 Pro if you need
- ✓Choose GPT-5.4 Pro if you need a 1.05M context window for very large multimodal inputs.
- ✓Choose GPT-5.4 Pro if you need advanced reasoning over extended contexts across text, image, and file data.
- ✓Choose GPT-5.4 Pro if you need strong integration of multiple modalities on maximum-length documents.
- ✓Choose GPT-5.4 Pro if you need versatility for visual and document tasks where context size outweighs price.
Verdict
GPT-5.4 Mini leads on affordability and measured output speed while offering native multimodal support and a 400k context window suitable for most document tasks. GPT-5.4 Pro provides a substantially larger 1.05M context and claims advanced reasoning over extended inputs but at 40x the price per million tokens with several metrics unreported. Mini is the practical choice for cost-sensitive large-scale file and image workflows; Pro targets users who require maximum context length despite higher latency and cost.
GPT-5.4 Mini vs GPT-5.4 Pro: side by side
| Spec | GPT-5.4 Mini | GPT-5.4 Pro | Winner |
|---|---|---|---|
| Intelligence | 40 | — | Tie |
| Output speed | 170 t/s | — | Tie |
| Output price | $4.50/1M | $180.00/1M | GPT-5.4 Mini |
| Context | 400K | 1050K | GPT-5.4 Pro |
| Params | — | — | Tie |
| Provider | OpenAI | OpenAI | Tie |
Detailed analysis
Pricing
Winner: GPT-5.4 MiniGPT-5.4 Mini costs $4.5 per million output tokens while GPT-5.4 Pro costs $180 per million. The 40x price difference makes Mini the clear choice for high-volume usage. Both models are proprietary OpenAI offerings with no other cost details provided.
Context Window
Winner: GPT-5.4 ProGPT-5.4 Pro offers a 1.05M token context compared with Mini's 400k tokens. This gives Pro an advantage for very large inputs across modalities. Mini's 400k window is still described as very large and suitable for document-heavy tasks.
Speed & Latency
Winner: GPT-5.4 MiniGPT-5.4 Mini reports a concrete output speed of 170.35 tokens per second. GPT-5.4 Pro lists no speed figure but notes higher latency on maximum-length inputs. Mini's limitations also mention latency increases with long contexts, yet its measured speed favors it for throughput.
Multimodal Capabilities
Winner: TieBoth models support text, image, and file processing with no native audio or video. Mini emphasizes flexible workflows and document suitability while Pro highlights strong integration and advanced reasoning over extended contexts. Neither provides additional modality details beyond these claims.
GPT-5.4 Mini
Pros
- +Very large context window
- +Native support for files, images, and text
- +Flexible multimodal workflows
Cons
- –Mini size may reduce depth on complex reasoning
- –Performance depends on input quality across modalities
- –Long contexts can increase latency
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
Summary: GPT-5.4 Mini vs GPT-5.4 Pro
Select GPT-5.4 Mini for cost-effective, high-speed multimodal processing within a 400k context. Choose GPT-5.4 Pro when the 1.05M context and advanced reasoning justify the steep price increase. Most users will find Mini sufficient unless maximum context length is essential.
Frequently asked questions
GPT-5.4 Mini is better for most users due to its known speed, much lower price, and sufficient 400k context with native multimodal support. GPT-5.4 Pro is better only when the larger 1.05M context is required.