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
Models that were current when this was published (released in the six months before it, newest version of each line), so these figures are from that time. Under each chart is the current best. (Models)
Current best (as of Nov 6, 2026): Claude Haiku 5.5, $0.10
Current best (as of Nov 6, 2026): Claude Haiku 5.5, $0.50
Current best (as of Nov 6, 2026): GPT-6 Cyber, 1.05M tokens
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.
- #llm
- #openai
- #gpt-5
- #context-management
