Entity · model
GPT-5.4 Thinking
SupersededGPT-5.5 is the current OpenAI flagship model (supersedes GPT-5.4 and GPT-5.2). See GPT-5.5 →
modelactive
gpt-5-4-thinking-541ca867·10 events·first seen Aliases: GPT-5.4 Thinking, GPT-5.1 Thinking, gpt-5-thinking, gpt-5-thinking-nano, GPT-5.5 Thinking, GPT-5.2 Thinking
Co-occurring entities
More like this (12)
Recent events (10)
OpenAI releases GPT-Live-1 voice models with full-duplex audio and background reasoning via GPT-5.5
OpenAI released GPT-Live-1 and GPT-Live-1 mini on July 8, 2026, replacing Advanced Voice Mode with a full-duplex voice system that processes audio input and output simultaneously. When deeper reasoning is needed, the voice model delegates to GPT-5.5 or GPT-5.5 Thinking in the background while continuing to speak. GPT-Live-1 at high reasoning scored 84.2% on GPQA versus 45.3% for its predecessor AVM, and human raters preferred it 75.7% of the time. The release also covers Andrew Ng's editorial on AI's labor market effects and a segment on detecting manipulative model behavior.
OpenAI GPT-Live Pairs Full-Duplex Voice Models with GPT-5.5 Reasoning Backend
OpenAI released GPT-Live-1 and GPT-Live-1 mini on July 8, 2026, replacing Advanced Voice Mode with a full-duplex voice system that processes audio continuously and delegates harder queries to GPT-5.5 in the background. The architecture separates a real-time conversational voice model from a reasoning model, with user-selectable reasoning effort levels (Instant, Medium, High) routing to GPT-5.5 Instant or GPT-5.5 Thinking accordingly. Performance gains are substantial: GPQA scores jumped from 45.3% (AVM) to 84.2% (GPT-Live-1 at high reasoning), and BrowseComp improved from 0.7% to 75.2%. The system is live globally on iOS, Android, and ChatGPT.com for paid plans, though no developer API has shipped yet.
OpenAI expands GPTs custom actions model picker to include GPT-5.2 Instant and GPT-5.2 Thinking
OpenAI has updated GPTs with custom actions to support additional models in the model picker, adding GPT-5.2 Instant and GPT-5.2 Thinking alongside the previously available GPT-4o, GPT-4.1, and GPT-5 Instant. o-series and Pro models remain unsupported for custom actions, and availability is subject to workspace admin configuration. The change expands the capability tier accessible to GPT builders using tool-calling workflows.
OpenAI retires GPT-5.1 models from ChatGPT, migrates users to GPT-5.3/5.4
OpenAI removed GPT-5.1 Instant, GPT-5.1 Thinking, and GPT-5.1 Pro from ChatGPT as of March 11, 2026. Existing conversations using GPT-5.1 variants are automatically migrated to corresponding current models: GPT-5.3 Instant, GPT-5.4 Thinking, and GPT-5.4 Pro. This is a routine model lifecycle action reflecting OpenAI's cadence of deprecating older model versions as newer ones become the standard.
OpenAI rolls out GPT-5.4 mini in ChatGPT as reasoning fallback
OpenAI is deploying GPT-5.4 mini in ChatGPT, making it available to Free and Go users via the 'Thinking' feature and as a rate-limit fallback for GPT-5.4 Thinking for paid users. The model will not appear as a selectable option in the model picker, positioning it as a background capacity-management tool rather than a user-facing choice. Enterprise customers retain the option to set Auto routing to default to GPT-5.4 mini.
OpenAI updates GPT-5.5 Instant with improved response style, removes canvas support
OpenAI is rolling out a quality update to GPT-5.5 Instant in ChatGPT and the API, targeting response style improvements including more natural conversational tone, better pacing, and fewer overly long or bullet-heavy outputs. The update also removes canvas from GPT-5.5 Instant and GPT-5.5 Thinking, replacing that functionality with inline writing blocks and code blocks in chat responses. Paid users retain canvas access via legacy models until those are sunset.
OpenAI GPT-5.4 Pro and GPT-5.4 Thinking challenge Gemini 3.1 Pro Preview for top AI model position
OpenAI released GPT-5.4 in two variants (Pro and Thinking), featuring expanded context windows up to 1.05M tokens, native computer use, tool search capabilities, and adjustable reasoning levels. In independent benchmarks by Artificial Analysis, GPT-5.4 Pro at xhigh reasoning nearly ties Gemini 3.1 Pro Preview on the Intelligence Index (57 vs 57.2 points) but at roughly 3.3x the cost, while leading on coding and agentic sub-indices. The release leapfrogs Claude Opus 4.6 on most benchmarks but faces stiff competition from Google's Gemini 3.1 Pro Preview, which maintains a price and multimodal advantage.
GPT-5 System Card
OpenAI has published the system card for GPT-5, revealing a unified model routing architecture that dynamically selects among multiple sub-models: gpt-5-main, gpt-5-thinking, and lightweight variants such as gpt-5-thinking-nano. The routing system is designed to balance speed and capability depending on task requirements and deployment context. This document provides the first official safety and capability disclosure for the GPT-5 model family.
GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum
OpenAI published a system card addendum for GPT-5.1 Instant and GPT-5.1 Thinking, providing updated safety metrics for both model variants. The addendum includes new evaluations specifically targeting mental health and emotional reliance risks. This follows the GPT-5 system card and extends safety documentation to the 5.1 generation of models.
GPT-5.4 Thinking System Card
OpenAI published a system card for GPT-5.4 Thinking, a model in the GPT-5 family with explicit reasoning/thinking capabilities. The system card likely covers safety evaluations, capability assessments, and deployment considerations for this model. No body content was available for detailed analysis.