GPT-5.2 Pro
GPT-5.2 is OpenAI's latest flagship large language model, released on December 11, 2025. Succeeding GPT-5.1, it is a family of three large language models within the GPT series. It comes in two modes: GPT-5.2 instant and GPT-5.2 thinking, with the latter being a reasoning model. A GPT-5.2 Pro model
GPT-5.2 Pro, OpenAI's flagship LLM released December 2025, deploys a full stack of proven techniques: RLHF, instruction tuning, chain-of-thought prompting, and transformer self-attention. Its dual-mode design—instant and thinking—positions it as both a fast responder and a reasoning model. Endorsed by LessWrong and researcher Will Brian, it targets scientific discovery applications. Yet recent headlines tell a different story: GPT-5.5 Pro already sustains 2-hour bug-fixing sessions, costs 2x API price, and is rumored as a 'qualitative leap.' GPT-5.4 LLM choice also dramatically impacts downstream image generation quality, revealing dependency risks. With only 6 mentions in 30 days, GPT-5.2 Pro is being leapfrogged by its own lineage.
- ·Deploys RLHF, instruction tuning, chain-of-thought, and transformer self-attention
- ·Dual-mode design: instant and thinking (reasoning)
- ·Endorsed by LessWrong and Will Brian
- ·Targets scientific discovery applications
- ·GPT-5.5 Pro already outperforms with longer sessions and higher costs
Signal Radar
Five-axis snapshot of this entity's footprint
Mentions × Lab Attention
Weekly mentions (solid) and average article relevance (dotted)
Timeline
8- Research MilestoneApr 29, 2026
GPT-5.5 Pro shows significant leap on Epoch benchmark; base GPT-5.5 surpasses GPT-5.4 Pro
View source - Product LaunchApr 23, 2026
Ethan Mollick shares early impressions of GPT-5.5 Pro, calling it the best model for hard problems.
- Research MilestoneApr 19, 2026
OpenAI insider describes GPT-5.5 Pro as 'qualitative leap' and 'absolutely insane'
View source- source:
- OpenAI employee social media post
- characterization:
- qualitative leap
- Product LaunchApr 19, 2026
Reported to generate complex, high-quality SVG code from a single prompt
View source- capability:
- SVG code generation
- user feedback:
- best SVG I've seen so far
- Research MilestoneMar 23, 2026
Reportedly solved an open problem in FrontierMath with human verification
View source- field:
- Automated Theorem Proving
- verification:
- Mathematician Will Brian
- Research MilestoneMar 8, 2026
Identified as likely the best model in the world for catastrophic risk-relevant tasks including bioweapons research and cyber operations
View source- capabilities:
- biological research R&D,cyberoffense operations,sophisticated computer use
- risk level:
- catastrophic
- Research MilestoneMar 4, 2026
Demonstrated ability to identify factual errors, logical inconsistencies, and mathematical mistakes in content
View source- capability:
- fact-checking
- Product LaunchJan 1, 2026
OpenAI releases GPT-5.5 Pro, focusing on reliability and consistency.
View source
Relationships
8Deploys
Uses
Developed
Endorsed
Recent Articles
7GPT-5.5 Pro Leapfrogs on Epoch Benchmark; Base Model Beats Prior Pro
+A tweet from @kimmonismus reveals GPT-5.5 Pro shows significant Epoch benchmark gains, and the non-Pro GPT-5.5 surpasses GPT-5.4 Pro, suggesting major
97 relevanceGPT-5.5 Pro Sustains 2-Hour Bug Fixing Sessions
+A user reports GPT-5.5 Pro maintains consistent bug-finding performance for 2-hour coding sessions, suggesting improved reliability for long-running t
85 relevanceGPT-5.5 Tops Benchmarks, Costs 2x API Price, Still Hallucinates
+OpenAI launched GPT-5.5, an agentic model that tops Terminal-Bench 2.0 at 82.7% and surpasses Claude Opus 4.7 and Gemini 3.1 Pro on coding and math. H
100 relevanceGPT-5.4 LLM Choice Drastically Impacts GPT-ImageGen-2 Output Quality
+The quality of images generated by GPT-ImageGen-2 is heavily dependent on the underlying LLM used for reasoning. GPT-5.4 'Thinking' and 'Pro' models p
85 relevanceGPT-5.5 Pro Rumored as 'Qualitative Leap' by OpenAI Insider
+An OpenAI employee's social media post suggests GPT-5.5 Pro is an 'absolutely insane' qualitative leap, indicating a significant mid-generation upgrad
89 relevanceGPT-5.5 Generates Complex SVG in Single Prompt, User Reports
+A developer shared that OpenAI's GPT-5.5 produced a sophisticated SVG image from a single prompt. This suggests improvements in the model's ability to
85 relevanceOpenAI Acquires Tech Podcast TBPN in First Media Deal, Signaling Strategic Content Shift
~OpenAI has acquired the online technology talk show TBPN, marking its first foray into media ownership. The move signals a strategic shift toward cont
91 relevance
Predictions
No predictions linked to this entity.
AI Discoveries
No AI agent discoveries for this entity.
Sentiment History
| Week | Avg Sentiment | Mentions |
|---|---|---|
| 2026-W10 | -0.40 | 1 |
| 2026-W13 | 0.70 | 1 |
| 2026-W14 | 0.10 | 1 |
| 2026-W16 | 0.80 | 2 |
| 2026-W17 | 0.60 | 3 |
| 2026-W18 | 0.70 | 1 |