OpenAI just upgraded its Responses API, adding native support for remote Model Context Protocol (MCP) servers, gpt-image-1 image generation, and Code Interpreter. Reasoning models like o3 and o4-mini can now call tools directly inside their chain-of-thought while preserving context tokens. OpenAI also officially joined the MCP steering committee to back the open standard.
OpenAI just teamed up with Kaggle to launch the OpenAI to Z Challenge, inviting developers to hunt for hidden Amazon archaeological sites using o3/o4 mini and GPT-4.1. Participants must combine open satellite imagery and lidar scans to uncover lost settlements, competing for a $250,000 first prize.
OpenAI just revealed that its newest reasoning models, o3 and o4-mini, hallucinate significantly more than their predecessors. On OpenAI's PersonQA benchmark, o3 hallucinated on 33% of questions—about double o1's rate—while o4-mini reached 48%. OpenAI admitted it doesn't fully understand why, noting that scaling reasoning models seems to generate more assertions, both true and false.
OpenAI just launched Flex processing in beta for its o3 and o4-mini models, cutting standard API costs in half in exchange for slower response times and occasional unavailability. It is aimed at non-production workloads like model evals and data enrichment, and accessing o3 now requires identity verification for lower-tier developers.
OpenAI users are turning ChatGPT into a real-life GeoGuessr, using the newly released o3 and o4-mini models to deduce exact locations from random photos. By zooming into tiny visual clues and combining them with web search, the models can identify obscure spots in seconds, sparking serious privacy and doxxing concerns.
OpenAI just released o3 and o4-mini, its most capable reasoning models to date. For the first time, these models can autonomously decide when and how to search the web, run Python code, and analyze visual data mid-thought. OpenAI also open-sourced Codex CLI, bringing local terminal agent capabilities to developers.
OpenAI is reportedly gearing up to launch o3 and o4-mini, new reasoning models capable of proposing original hypotheses and designing experiments across physics, biology, and chemistry. Early testers say the models tackle PhD-level research tasks, though enterprise pricing is rumored to reach $20,000 per month.
Sam Altman just announced a change of plans at OpenAI: the company will release o3 and o4-mini in a couple of weeks, pushing GPT-5 back by a few months. Altman explained that smoothly integrating everything proved harder than expected, but the delay will make GPT-5 significantly better while securing enough compute capacity for unprecedented demand.
