OpenAI released ChatGPT‑5.2

What is ChatGPT‑5.2?
Summary: ChatGPT‑5.2 is OpenAI’s latest frontier model, released in December 2025, designed for professional knowledge work, long-context reasoning, and advanced workflows. It builds on ChatGPT‑5.1 with smarter reasoning, stronger reliability, and new productivity features.

What ChatGPT‑5.2 Is

Newest model in the GPT‑5 series: Built for enterprise and professional use with higher capability and reliability. Three modes of operation: Instant: Fast, lightweight responses for quick tasks. Thinking: Deeper reasoning for complex analysis. Pro: Extreme context handling (up to 256,000 tokens) for long-running projects. Professional focus: Handles spreadsheets, presentations, coding, image perception, and multi-step projects with fewer errors.

Key Features of ChatGPT‑5.2

Enhanced reasoning: Better at multi-step logic, research, and problem-solving. Long-context performance: Maintains coherence across very large inputs (up to 256k tokens). Reduced hallucinations: Error rates lowered by ~30%, improving trustworthiness. Integrated productivity tools: Native support for creating spreadsheets, building slides, and handling workflows. Image capabilities: Improved vision processing and native image output for professional tasks. Agentic behavior: Stronger tool use, ability to stay on track, and complete multi-step tasks reliably. Variants for flexibility: Instant, Thinking, and Pro let users balance speed vs depth.

Differences vs ChatGPT‑5.1

Aspect ChatGPT‑5.1 ChatGPT‑5.2 Advantage of 5.2 Reasoning Good but limited Advanced horizon reasoning, fewer errors More accurate analysis Context window Shorter Up to 256k tokens Handles long documents/projects Productivity tools Basic Built-in spreadsheets, slides, workflows Enterprise-ready Image handling Limited Native image output & vision Stronger multimodal use Modes Single model Instant, Thinking, Pro Flexible performance Reliability Occasional hallucinations ~30% fewer hallucinations Safer, more trustworthy

Considerations
Resource-heavy: Pro mode’s long context may be slower or more compute-intensive. Learning curve: New workflow features (spreadsheets, slides) may take time for casual users. Less personality focus: Emphasizes professional reliability over conversational charm compared to 5.1.

Bottom line: ChatGPT‑5.2 is a major leap for professional and enterprise users, offering deeper reasoning, long-context handling, and integrated productivity tools—optimized for serious work, research, and automation.