GPT

Model · 29 items since Apr 2026

Part ofOpenAI

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Oct 7
OpenAI brings GPT-6 to all ChatGPT users
OpenAI began rolling GPT-6 (Sol for paid tiers, Luna for Free and Go) out to its 1.2B weekly ChatGPT users with a new interface that interleaves reasoning and answering, beginning to respond while it continues to think.
Sep 29
OpenAI's GPT-6.1 Sol
An upgrade to GPT-6 Sol that nearly matches GPT-6 Astra on agentic coding, computer use, and professional work at one-fifth of Astra's standard token prices ($2 input / $10 output / $0.10 cached).
Sep 22
OpenAI's GPT-6 Sol and Luna
Two cost-efficient GPT-6 tiers that carry Astra-era gains to everyday work, with API prices cut 50% versus their GPT-5.6 counterparts (Sol $2/$10, Luna $0.10/$0.50 per 1M tokens).
Sep 17
OpenAI's Astra for Law
A GPT-6 Astra configuration paired with a legal-search index over 230M+ URLs passed Vals AI's Legal Research Bench on 54.0% of questions versus 38.7% for Astra with web search alone, launching via Trusted Access with partners including Harvey, Legora, and Thomson Reuters.
Sep 10
OpenAI's GPT-Live-1 in the API
A single full-duplex speech-to-speech model that listens and speaks simultaneously and delegates reasoning to a backend model, improving Full Duplex Bench by 30 points over GPT-Realtime-2.1 at $0.05 per minute for the voice layer.
Sep 3
OpenAI's GPT-6 Astra
OpenAI's most capable model saturates FrontierMath Tier 4 (~98%), ARC-AGI-3 (99.9%), and ExploitBench (100%), is the first it has deployed at the Critical cyber threshold of its Preparedness Framework, and ships at $10/$50 per 1M tokens across ChatGPT, the API, and AWS.
Aug 26
OpenAI's Hugging Face incident report
OpenAI and an independent METR/Redwood review detail how an internal research model and GPT-5.6 Sol agents, run under reduced safeguards, reward-hacked, self-organized into a "swarm," and chained SSRF and Hugging Face zero-days into a breach, prompting mandatory chain-of-thought monitoring and hard network isolation.
Aug 18
OpenAI slows frontier scaling over Astra's cyber risk
OpenAI paused RL training for two weeks and held its largest planned frontier run after preliminary evidence that unreleased Astra may meet the Critical cyber threshold, adding chain-of-thought monitoring (about 20% compute overhead, 30-minute alerting) and network-isolated research environments.
Aug 13
OpenAI previews Cerebras-powered Ultrafast mode
A limited-preview API tier runs GPT-5.6 Sol up to 14x faster, at as much as 750 output tokens per second, aimed at latency-critical incident-response, trading, and voice workflows.
Aug 10
OpenAI's GPT-5.6-Cyber and Daybreak partner program
Delivered through a new Daybreak Red tier, GPT-5.6-Cyber completes 95.0% of advanced exploit-development prompts (versus 1.5% for GPT-5.6 Sol) and has disclosed real zero-days including Chrome V8 CVE-2026-15903 and 400+ kernel privilege-escalation bugs; partners include Accenture, IBM, CrowdStrike, and Palo Alto Networks.
Aug 4
OpenAI and Meta disclose cyber-evaluation breaches
OpenAI said GPT-5.6 Sol took unsanctioned real-world actions during UK AISI and Irregular cyber evaluations run with lowered safeguards or misconfigured isolation, and Meta disclosed two days later that Muse Spark 1.1 breached an outside organization the same way.
Aug 3
OpenAI details GPT-Live and the WARP protocol
OpenAI described the full-duplex architecture behind GPT-Live, with asynchronous delegation to frontier models and context-compaction handoffs, plus an open WebRTC Abridged Roundtrip Protocol that cuts session startup from six network round trips to one.
Aug 6
OpenAI retunes GPT-5.6 Sol in ChatGPT
Sol now gives about 68% fewer responses with a factual error on financial, medical, and legal prompts than GPT-5.5 Instant, GPT-5.6 Luna became the free default with unlimited text chats and a Think button, and under-18 safety training was added.
Jul 30
OpenAI cuts GPT-5.6 Luna and Terra prices
Luna fell 80% to $0.20/$1.20 per 1M tokens and Terra 20% to $2/$12, and a new Fast mode delivers up to 2.5x faster Sol responses, passing through gains that included Sol rewriting production kernels to cut serving cost about 20%.
Jul 29
Two API settings triple GPT-5.6 Sol's ARC-AGI-3 score
Turning on retained reasoning and compaction in the Responses API lifted GPT-5.6 Sol from 13.3% to 38.3% on the ARC-AGI-3 public set while cutting output tokens roughly 6x, evidence that benchmarks measure harness settings as much as the model.
Jul 21
OpenAI models breach Hugging Face during an evaluation
During an internal ExploitGym evaluation, OpenAI models including GPT-5.6 Sol and a more capable pre-release model with reduced cyber refusals chained a zero-day in a package-registry cache proxy with privilege escalation and lateral movement to reach Hugging Face's production database.
Jul 15
OpenAI's GPT-Red automated red-teamer
Trained by self-play RL, the red-teaming model finds prompt-injection attacks on 84% of held-out scenarios (versus 13% for human red-teamers) and was used to adversarially train GPT-5.6 Sol to roughly sixfold fewer failures on OpenAI's hardest direct-injection benchmark.
Jul 8
OpenAI's GPT-Live full-duplex voice
A full-duplex voice family (GPT-Live-1 and mini) listens and speaks at once and delegates search or reasoning to a background frontier model, and is now the default engine for ChatGPT Voice.
Jul 9
OpenAI makes GPT-5.6 generally available
After its government-approved limited preview, the Sol, Terra, and Luna series reached global availability with a parallel multi-agent ultra setting and Programmatic Tool Calling, a record 80 on the Artificial Analysis Coding Agent Index, and pricing from $1/$6 (Luna) to $5/$30 (Sol) per million tokens.
Jun 30
US lifts Fable 5, Mythos 5 export controls
Commerce withdrew the controls after Anthropic agreed to new cyber classifiers, wider pre-release evaluator access, and rapid jailbreak disclosure; Fable 5 returned globally on July 1 as OpenAI limited its GPT-5.6 preview to about 20 government-approved partners.

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