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DeepSeek V4 Pro reportedly outperforms GPT-5.5 Pro on precision, suggesting a significant advancement in model accuracy.
OpenAI discontinued support for the gpt-5.3-codex model, impacting OpenClaw users who now need to switch to the gpt-5.5 model via Codex.
Codex has reached 5 million users and is preparing to reset limits, with mentions of GPT 5.5 and fast mode.
Braintrust uses OpenAI's Codex with GPT-5.5 to turn customer feature requests into preview branches in minutes, enabling real-time iteration and faster feedback loops.
Users report that OpenAI's Codex GPT-5.5 high model performance has degraded, exhibiting laziness, hallucinations, and context loss. Suspecting it's due to OpenAI training GPT-5.6, they need to enable xhigh mode to restore normal performance.
A tweet highlights that 20 free daily tokens from Tembo provide full access to GPT 5.5 and GLM, and Opus 4.7 handles architecture tasks at zero cost, matching paid tools' output.
Codex announces winners of a weekend hackathon where participants built projects using GPT-5.5 and Codex, with prizes including ChatGPT Pro subscriptions.
OpenAI is previewing a personal finance experience in ChatGPT for Pro users in the U.S., allowing them to securely connect financial accounts, view a dashboard, and ask context-aware financial questions, powered by GPT-5.5.
The author explains they skip Codex's planning mode, instead using a conversation in chat to reach a pseudo-plan, then implement.
A user running multiple agents reports that after upgrading to GPT-5.5, the model suddenly became less capable at executing tool calls and more prone to giving suggestions instead of acting, speculating OpenAI may be throttling for load management.
NVIDIA engineers and researchers are using OpenAI Codex, powered by GPT-5.5, as their default tool for complex engineering tasks and end-to-end machine learning workflows. The article highlights significant productivity gains, autonomous system building, and research automation achieved through this integration on NVIDIA infrastructure.
Report claims that GPT-5.5 Instant shows significant improvements in factual accuracy, particularly in high-stakes fields like medicine, law, and finance.
A tutorial video demonstrating how to use OpenAI's Codex with GPT-5.5 for 'vibe coding' to build web, desktop, and iOS applications without traditional coding, including Firebase integration and Vercel deployment.
Simon Willison evaluates OpenAI's GPT-5.5 cyber capabilities, examining its performance in cybersecurity tasks.
OpenAI has released GPT-5.5, a significant upgrade to its frontier AI model, boasting superior capabilities in agentic coding, research, and multi-step task execution while maintaining efficiency and speed.
A user recorded a brief leak in OpenAI Codex that exposed several unreleased internal models including GPT-5.5, Arcanine, and Glacier-alpha before the interface was patched.
User testing shows the new 5.4 Pro behaves like a stealth 5.5-thinking-xhigh, hinting OpenAI is quietly giving Pro subscribers early access to stronger reasoning.
OpenAI Solutions Engineer Stephanie Anani demonstrates how ChatGPT (based on GPT 5.5) reduces investment analysis workflows in financial services from hours to minutes through deep research, Excel financial modeling, and presentation generation, emphasizing that AI amplifies rather than replaces human judgment.
Abridge uses GPT-5.5 to extract key facts from doctor-patient conversations, creating more complete clinical notes and reducing documentation burden.
GPT-5.5 brings a 19 percentage point improvement in multi-step reasoning and financial modeling, significantly reducing the burden of knowledge work, which excites the Box team.