GPT-5.2 Pro

GPT-5.2 Pro sits in OpenAI's gpt-pro lineage as a premium, proprietary API model aimed at demanding professional workloads where reasoning quality matters more than throughput. It is documented as a Responses-API offering from OpenAI, with multimodal input handling and text output, and it is explicitly built around advanced multi-step reasoning, external tool use for agentic workflows, and attachment processing. That positioning makes it a natural fit for tasks such as long-form analytical writing, complex code and research assistance, multi-document review, and orchestrated tool-driven automations where the model needs to plan, call functions, and synthesize results across many steps.

Independent tracking from mid-2026 shows that GPT-5.2 Pro has been superseded as OpenAI's top professional model: it was removed from ChatGPT in mid-June 2026 and is now described by OpenAI as a "previous pro model," with GPT-5.5 Pro taking over as the dedicated Pro successor and GPT-5.6 serving as the current flagship family. Despite that demotion on the consumer side, the Responses API model page continues to list gpt-5.2-pro, so it remains a practical choice for teams that need reproducibility of older outputs or compatibility with existing agent pipelines, even as new builds are encouraged to move to the newer Pro and flagship tiers.

OrcaRouteropenai/gpt-5.2-progpt-pro

Open provider page Provider docs

Quick Info

Provider: OrcaRouter
Model key: openai/gpt-5.2-pro
Release date: Dec 11, 2025
Last updated: Dec 11, 2025
Knowledge cutoff: 2025-08-31
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $21.00
Output token cost: $168.00

Limits

Input tokens: 272,000 tokens
Output tokens: 128,000 tokens
Context window: 400,000 tokens

Transparent token rates

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about GPT-5.2 Pro

OpenAI

Official sourceAnnouncement

OpenAI introduced GPT-5.2 on December 11, 2025, as its most capable model series for professional knowledge work and long-running agents. The launch explicitly names GPT-5.2 Instant, Thinking, and Pro as three tiers rolling out in ChatGPT starting with paid plans, with all variants also available in the API on the same day. The release targets spreadsheets, presentations, code, image perception, long context, tool use, and complex multi-step projects. GPT-5.2 Thinking sets new state-of-the-art results on benchmarks including GDPval (70.9% wins or ties vs GPT-5's 38.8%), SWE-Bench Verified (80.0%), GPQA Diamond (92.4%), AIME 2025 (100%), and ARC-AGI-2 (52.9% vs 17.6%). Partners such as Notion, Box, Shopify, Harvey, Zoom, Databricks, Cognition, JetBrains, and Augment Code report state-of-the-art long-horizon reasoning, agentic coding, and tool-calling performance.