Pricing, Performance & Features Comparison
GPT-5.4 is OpenAI's most capable and efficient frontier model for professional work, combining advanced reasoning, coding, and native computer-use capabilities into a single model. It supports up to 1 million tokens of context, enabling agents to plan, execute, and verify tasks across long horizons. It is also the most factual model OpenAI has released, with individual claims 33% less likely to be false compared to GPT-5.2.
Claude Sonnet 4.6 is Anthropic's best combination of speed and intelligence, delivering frontier performance across coding, agents, and professional work at scale. It features advanced capabilities including extended and adaptive thinking, supports a 1M token context window, and excels in reasoning, coding, multilingual tasks, long-context handling, and image processing with a training data cutoff of January 2026.