GPT-5.4
OpenAILarge Language ModelProprietaryOpenAI's most capable frontier model optimized for agentic, coding, and professional workflows. Features native computer-use capabilities, 1M token context, and the most token-efficient reasoning of the GPT-5 family.
Abilities
Use Cases
Available in Tools
Availability
How to Use
Pros
- Native computer-use capabilities — first general-purpose model that can operate software across applications
- 1M token context window with 128K max output — handles entire codebases and book-length documents
- Most token-efficient reasoning model — uses significantly fewer tokens than GPT-5.2 to solve problems
- 33% fewer false claims and 18% fewer erroneous responses compared to GPT-5.2
- State-of-the-art coding capabilities incorporating GPT-5.3-Codex advances
- Configurable reasoning effort (none/low/medium/high/xhigh) — tune speed vs. depth per request
Cons
- Closed source — no visibility into model weights, training data, or architecture
- Expensive at scale ($2.50 input / $15.00 output per 1M tokens), especially for high-volume processing
- Requests exceeding 272K tokens are priced at 2x input and 1.5x output
- Knowledge cutoff August 2025 — cannot access real-time information without tools
What to Use It For
Perfect For
First model with native computer-use + state-of-the-art coding in one package, top of APEX-Agents benchmark
Strongest factuality and reasoning capabilities with configurable effort levels
1M context window can hold entire codebases with 128K output for comprehensive changes
Good For
Available on Azure with compliance certifications and the largest tool ecosystem
Configurable reasoning effort allows tuning depth vs. speed per request
Not Recommended
Overkill and expensive — use GPT-4.1 Mini or Nano for lightweight tasks
Try instead: GPT-4.1 Mini, GPT-4.1 Nano
Closed source with no available weights — completely dependent on OpenAI API
Try instead: Llama 4 Maverick, Qwen 3
Do Not Use For
It is an LLM, not an image generation model
Try instead: GPT-Image-1, FLUX.2 Pro
Text and reasoning model only — cannot create video content
Try instead: Sora, Veo