GPT-5.4
The world's most capable all-rounder LLM. Largest ecosystem, deepest tool integration, and industrial-grade multimodal support.
Why it matters
GPT-5.4 is OpenAI's leading model with the largest ecosystem, deepest tool integration, and best multimodal support.
Specifications
Strengths
- Largest developer ecosystem and third-party integrations
- Best multimodal capabilities (image, audio, vision)
- Most widely supported by external tools and platforms
Trade-offs
- Higher API pricing vs open alternatives
- Closed model — no self-hosting
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