GPT-5.2 at a glance
GPT-5.2 became the GPT-5 family flagship, adding gains in instruction following, vision, coding and tool calling.
What changed with GPT-5.2
OpenAI released GPT-5.2 and gpt-5.2-chat-latest in its API on December 11, 2025. The changelog cites improvements in instruction following, vision, coding and tool calling, and adds a new 'xhigh' reasoning effort level.
The release also introduced compaction-based context management, including a client-side /responses/compact endpoint, which helps long-running agents keep working without overflowing the context window. The model page lists a 400K-token context window.
GPT-5.2 benchmarks and pricing
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Input price per 1M tokensas of · Source for Input price per 1M tokens: developers.openai.com (opens in a new tab)
- $1.75
- Output price per 1M tokensas of · Source for Output price per 1M tokens: developers.openai.com (opens in a new tab)
- $14.00
- Context windowas of · Source for Context window: developers.openai.com (opens in a new tab)
- 400K tokens
How it compares
Other models in the same category that we have covered, using each model's latest recorded value. (Models)
Where to compare GPT-5.2
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
Leaderboards
General leaderboards
Why GPT-5.2 matters for businesses
For agencies building multi-step automations, compaction matters more than raw benchmark gains: it lets an agent handle longer conversations and workflows at predictable cost. OpenAI now labels GPT-5.2 a previous flagship and points new work to GPT-6 Astra.
Sources for this story
- OpenAI API changelog (opens in a new tab)Official
OpenAI · developers.openai.com
- GPT-5.2 model page (opens in a new tab)Official
OpenAI · developers.openai.com
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
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- #openai
- #gpt-5
- #context-management
