
GPT-5.4’s Higher Performance, Higher Price: OpenAI’s GPT-5.4 Pro and GPT-5.4 Thinking challenge Google’s Gemini 3.1 Pro Preview as best all-around AI model
OpenAI updated its flagship models, extending the ability to use tools and setting the state of the art on a handful of benchmarks, and priced them at the top of the market. Its coding and agentic abilities have enabled Codex, OpenAI’s competitor to Anthropic’s Claude Code, to leap ahead.













