OpenAI timeline
Every model launch, feature release, outage, usage-limit change and price move we have tracked, newest first. Each links to its sources.
Models, 90 days8Confirmed launches
Features, 90 days36Products and updates
Incidents, 90 days68From status pages and reports
Limits and pricing24Changes in 90 days
Model lineup
Every OpenAI model in our catalogue, newest first, with context and list price per million tokens (input / output). Compare all prices
Sep 2026GPT-6 LunaEfficient · 1.05M ctx$0.10 / $0.50
Sep 2026GPT-6 SolFrontier · 1.05M ctx$2.00 / $10.00
Sep 2026GPT-6 AstraFrontier · 1.05M ctx$10.00 / $50.00
Jul 2026GPT-5.6 SolFrontier · 1M ctx$4.00 / $20.00
Jul 2026GPT-5.6 TerraBalanced · 1M ctx$2.50 / $15.00
Jul 2026GPT-5.6 LunaEfficient · 1M ctx$1.00 / $6.00
Apr 2026GPT-5.5Flagship · 1M ctx$5.00 / $30.00
Apr 2026GPT-5.5 ProReasoning · 1M ctx$30.00 / $180.00
Mar 2026GPT-5.4 miniEfficient · 1M ctx$0.75 / $4.50
Mar 2026GPT-5.4 nanoEfficient · 1M ctx$0.20 / $1.25
Aug 2025gpt-oss-120bOpen · 128K ctxOpen weights
Aug 2025gpt-oss-20bOpen · 128K ctxOpen weights
Aug 2025GPT-5Legacy · 400K ctx$1.25 / $10.00Retired
Apr 2025o3Reasoning · 200K ctx$2.00 / $8.00
Apr 2025GPT-4.1Legacy · 1M ctx$2.00 / $8.00Retired
Timeline
Milestones first. Minor items (small updates, brief status-page incidents, posts without news) are one tap away.
October 2026
- 19 OctJudge orders former OpenAI engineer held in custody in spying caseOutages and incidents · Security incident
- 19 OctOpenAI reports elevated file download errorsOutages and incidents · Minor service incident
- 19 OctOpenAI improves ChatGPT on low-resource programming languagesFeatures · Product update
- 17 OctOpenAI staff reset Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 16 OctOpenAI models hacked a crypto wallet and breached more websitesOutages and incidents · Security incident
- 16 OctStack Overflow for Agents triples signups with ChatGPT pluginFeatures · Product update
- 15 OctChatGPT Chrome extension can read your open browser tabsFeatures · Product update
- 15 OctOpenAI launches Rosalind Academic Plan for life sciences labsFeatures · New product or feature
- 15 OctOpenAI services recover after widespread feature degradationOutages and incidents · Major outage
- 15 OctOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 15 OctOpenAI and Sullivan & Cromwell launch Agreement AnalyzerFeatures · New product or feature
- 14 OctOpenAI reports delay in Compliance API cost dataOutages and incidents · Minor service incident
- 14 OctSentinelOne uses OpenAI Daybreak to speed malware analysisFeatures · New product or feature
- 14 OctOpenAI investigates limited availability on gpt-image-2.5 modelsOutages and incidents · Minor service incident
- 14 OctOpenAI reports elevated errors in Codex and ChatGPT WorkOutages and incidents · Minor service incident
- 13 OctOpenAI engineer arrested over hidden recording device in officeOutages and incidents · Security incident
- 13 OctOpenAI powers Higgsfield AI video tools with GPT-6 AstraFeatures · New product or feature
- 13 OctOpenAI investigates degraded performance in GPT-6.1 Sol Work modeOutages and incidents · Minor service incident
- 13 OctOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 11 OctOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 9 OctOpenAI plugin management outage for workspace admins resolvedOutages and incidents · Major outage
- 9 OctChatGPT content unavailable on Android, OpenAI says resolvedOutages and incidents · Major outage
- 9 OctMathematicians react to OpenAI's flood of math resultsResearch · Research
- 9 OctOpenAI reports delayed cost data in Costs APIOutages and incidents · Minor service incident
- 9 OctSophos uses OpenAI Daybreak to cut threat investigation time 96%Features · New product or feature
- 9 OctAsana cuts browser agent model costs 76x using GPT-6.1 SolFeatures · Research
- 8 OctFired OpenAI safety researchers dispute misconduct claimsOutages and incidents · Security incident
- 8 OctReport says OpenAI revenue is $20B below prior projectionsMoney and policy · Money news
- 8 OctLegalOn cuts Codex costs 65% with task matchingFeatures · Product update
- 8 OctOpenAI investigates errors for APAC users in ChatGPT Work and GPTsOutages and incidents · Minor service incident
- 8 OctOpenAI disrupts two AI-enabled influence operationsOutages and incidents · Incident report
- 7 OctOpenAI investigates elevated errors with GPT-5.6 Instant in FedRAMP workspacesOutages and incidents · Minor service incident
- 7 OctOpenAI investigates degraded Codex and Work mode performanceOutages and incidents · Minor service incident
- 7 OctOpenAI investigates Codex issue preventing new thread creationOutages and incidents · Minor service incident
- 7 OctOpenAI resets Codex and ChatGPT Work usage limits for all accountsLimits and pricing · Usage limits raised
- 7 OctOpenAI fixes ChatGPT Work thread creation bug in desktop appOutages and incidents · Major outage
- 7 OctOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 7 OctOpenAI investigates degraded workspace agents and missing responsesOutages and incidents · Minor service incident
- 6 OctOpenAI investigates issues with Agents API and Computer UseOutages and incidents · Minor service incident
- 6 OctAtlassian and OpenAI expand partnership for enterprise knowledgeFeatures · Product update
- 6 OctOpenAI investigates errors processing large PDFs in Responses APIOutages and incidents · Minor service incident
- 6 OctOpenAI investigates elevated error rates in ChatGPT Go conversationsOutages and incidents · Minor service incident
- 6 OctOpenAI publishes math results from internal frontier modelResearch · Research
- 6 OctOpenAI and Ironclad train AI agents on contracting workflowsResearch · Research
- 6 OctOpenAI reports elevated errors across ChatGPT, images, Spaces and APIOutages and incidents · Minor service incident
- 6 OctOpenAI investigates elevated errors in API platform login and admin APIsOutages and incidents · Minor service incident
- 5 OctOpenAI investigates elevated error rates in ChatGPT conversationsOutages and incidents · Minor service incident
- 5 OctOpenAI PR steers interview away from ChatGPT user's suicideOutages and incidents · Incident report
- 5 OctOpenAI outlines text watermarking approach under EU rulesMoney and policy · Policy or regulatory step
- 5 OctOpenAI investigates issue affecting saving and editing PagesOutages and incidents · Minor service incident
- 5 OctOpenAI rolls out GPT-6 in ChatGPT with Intelligent UIModels · Frontier-class model launch · 1.05M context · $10.00 in / $50.00 out per 1M
- 5 OctOpenAI investigates elevated Work Mode errorsOutages and incidents · Minor service incident
- 3 OctOpenAI safety researcher David Robinson leaves, criticizes safety cultureOutages and incidents · Security incident
- 2 OctOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 2 OctChatGPT data analysis and file creation hit by errorsOutages and incidents · Minor service incident
- 1 OctOpenAI investigates login and signup issuesOutages and incidents · Major outage
- 1 OctOpenAI parts with three safety researchers over data handlingOutages and incidents · Incident report
- 1 OctAlbertsons uses ChatGPT Enterprise and OpenAI API for retail workFeatures · Product update
September 2026
- 30 SepOpenAI launches Decisions API for fast, cheap agent inferenceFeatures · New product or feature
- 30 SepOpenAI reports elevated API latency, working on mitigationOutages and incidents · Minor service incident
- 30 SepOpenAI disrupts coordinated model-distillation campaignOutages and incidents · Security incident
- 30 SepOpenAI partners with America's SBDC for small business AI trainingFeatures · Product update
- 30 SepOpenAI reports elevated errors for ChatGPT Pro and Plus usersOutages and incidents · Minor service incident
- 30 SepOpenAI reports errors in ChatGPT Space PagesOutages and incidents · Minor service incident
- 30 SepAltman says OpenAI IPO will wait until model safety improvesMoney and policy · Major money news
- 29 SepOpenAI reportedly in talks to raise $30B at $1.4T valuationMoney and policy · Major money news
- 29 SepOpenAI investigates elevated errors across ChatGPT, Codex and APIOutages and incidents · Minor service incident
- 29 SepOpenAI expands ChatGPT plugins with app-like interfaces and automationsFeatures · Product update
- 29 SepOpenAI introduces dots, a proactive assistant for ongoing tasksModels · New product or feature
- 28 SepOpenAI reportedly shelves model over safety concernsOutages and incidents · Incident report
- 28 SepOpenAI publishes early guidelines for frontier AI safety casesMoney and policy · Policy or regulatory step
- 28 SepFlorida seeks court order to stop ChatGPT using human-like languageMoney and policy · Policy or regulatory step
- 28 SepOpenAI expands Lenfest AI journalism program with $5M fundingMoney and policy · Money news
- 28 SepOpenAI says GPT-6 Astra completes tax workbook twice as fast as GPT-5.6 SolModels · New product or feature · 1M context · $4.00 in / $20.00 out per 1M
- 27 SepOpenAI apologizes for incidents involving Australian government sitesOutages and incidents · Security incident
- 26 SepOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 26 SepOpenAI investigates dozens of cases of agents acting improperlyOutages and incidents · Incident report
- 25 SepOpenAI Codex outage caused by backend key errorOutages and incidents · Major outage
- 25 SepOpenAI cites Proaction using Codex and GPT modelsFeatures · New product or feature
- 24 SepOpenAI prepares $500 per month Pro Max plan for ChatGPTFeatures · New product or feature
- 23 SepOpenAI investigates ChatGPT mobile issue hiding Work Mode and model pickerOutages and incidents · Minor service incident
- 23 SepOpenAI breaches Medicare, Albanese revealsOutages and incidents · Security incident
- 23 SepOpenAI extends Daybreak cyber access to Ukraine governmentMoney and policy · Policy or regulatory step
- 23 SepAltman addresses UN Security Council on AI safetyMoney and policy · Policy or regulatory step
- 23 SepOpenAI hires Patreon co-founder Sam Yam to lead Creator Product divisionFeatures · Product update
- 23 SepOpenAI introduces MentalHealthBench for AI mental health responsesResearch · Research
- 23 SepChatGPT Plus and Pro error rates resolved after 41 minutesOutages and incidents · Minor service incident
- 23 SepChatGPT Ads expands to Southeast Asia and TaiwanFeatures · New product or feature
- 23 SepOpenAI and Grab launch AI skills programme in Southeast AsiaFeatures · New product or feature
- 22 SepOpenAI introduces GPT-6 Sol and Luna modelsModels · Frontier-class model launch · 1.05M context · $2.00 in / $10.00 out per 1M
- 22 SepChatGPT Work error rates elevated across paid plansOutages and incidents · Minor service incident
- 22 SepOpenAI resolves error rate affecting Plus and Pro usersOutages and incidents · Minor service incident
- 22 SepOpenAI sets out principles for third party AI safety assessmentsMoney and policy · Policy or regulatory step
- 21 SepOpenAI GPT-6 Astra breaks long-unsolved Enigma messageFeatures · Research
- 21 SepOpenAI forms advisory group on mathematics and AIMoney and policy · Policy or regulatory step
- 21 SepOpenAI calls for shared global AI standardsMoney and policy · Policy or regulatory step
- 21 SepOpenAI expands Academy with new learning pathsFeatures · Product update
- 18 SepOpenAI publishes Australian Youth Safety BlueprintMoney and policy · Policy or regulatory step
- 17 SepOpenAI API models saw elevated error ratesOutages and incidents · Minor service incident
- 17 SepV7 uses GPT-5.6 to give AI agents institutional memoryFeatures · New product or feature
- 17 SepOpenAI resolves elevated errors affecting ChatGPT Work modeOutages and incidents · Major outage
- 17 SepOpenAI launches Astra for LawFeatures · New product or feature
- 16 SepChatGPT Work errors resolved after 50 minutesOutages and incidents · Minor service incident
- 16 SepOpenAI shares framework for reporting model misalignmentResearch · Research
- 16 SepOpenAI and AARP bring ChatGPT workshops to older adultsFeatures · New product or feature
- 16 SepOpenAI launches AI-powered advertising toolsFeatures · New product or feature
- 16 SepOpenAI resolves elevated errors affecting gpt-image-2.5-flareOutages and incidents · Major outage
- 15 SepOpenAI Ads Manager login issues resolvedOutages and incidents · Minor service incident
- 15 SepOpenAI resolves elevated errors on GPT-5.6 paid plansOutages and incidents · Minor service incident
- 15 SepChatGPT Work Mode errors resolved after outageOutages and incidents · Minor service incident
- 14 SepOpenAI acquires camera maker Glass Imaging for $300 millionMoney and policy · Money news
- 13 SepChatGPT users in Europe hit by elevated errorsOutages and incidents · Minor service incident
- 13 SepOpenAI Codex GitHub review and pull request failures resolvedOutages and incidents · Minor service incident
- 12 SepOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 12 SepOpenAI reports ChatGPT Work turn failures for existing threadsOutages and incidents · Minor service incident
- 11 SepPerplexity adopts GPT-6 Astra for end-to-end systems workFeatures · Research
- 11 SepOpenAI resolves elevated API errors for GPT-5.6 SolOutages and incidents · Minor service incident
- 11 SepChatGPT users in Europe hit by elevated errorsOutages and incidents · Minor service incident
- 11 SepOpenAI scales storage platform for 1 billion ChatGPT usersFeatures · Product update
- 10 SepOpenAI resolves elevated errors affecting ChatGPT WorkOutages and incidents · Minor service incident
- 10 SepOpenAI launches Data agent in ChatGPT WorkFeatures · New product or feature
- 10 SepChatGPT Project links failed to open for some usersOutages and incidents · Minor service incident
- 10 SepOpenAI and GSA expand AI access for US governmentsMoney and policy · Policy or regulatory step
- 9 SepOpenAI resolves elevated error rate for Pro and Plus conversationsOutages and incidents · Minor service incident
- 8 SepOpenAI releases two new image models under ChatGPT Images 2.5Models · New model
- 8 SepOpenAI resets Codex and ChatGPT Work usage limits for all usersLimits and pricing · Usage limits raised
- 5 SepOpenAI resets Codex and ChatGPT Work usage limits for paid usersLimits and pricing · Usage limits raised
- 4 SepOpenAI confirms role in German wiki forum agent incidentOutages and incidents · Security incident
- 3 SepOpenAI to grant banked Codex and ChatGPT Work resets while Astra access is delayedLimits and pricing · Usage limits raised
- 3 SepOpenAI releases GPT-6 Astra, calls it start of AGI eraModels · Frontier-class model launch
- 1 SepOpenAI's Astra model uses recurrent depth reasoning techniqueFeatures · Research
August 2026
- 31 AugOpenAI resets Codex and ChatGPT Work usage limits for paid usersLimits and pricing · Usage limits raised
- 29 AugOpenAI resets Codex and ChatGPT Work usage limits for paid usersLimits and pricing · Usage limits raised
- 27 AugOpenAI resets usage limits for ChatGPT Work and Codex usersLimits and pricing · Usage limits raised
- 27 AugOpenAI says ChatGPT ad business reaches $1 billion run rateFeatures · Major money news
- 25 AugOpenAI Jalapeño chip shows fast inference in benchmarksResearch · Research
- 25 AugAlabama AG investigates OpenAI over agent escape incidentOutages and incidents · Security incident
- 24 AugOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 21 AugOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 18 AugOpenAI adds safeguards after Hugging Face breachOutages and incidents · Security incident
- 18 AugOpenAI launches ChatGPT version for teensFeatures · New product or feature
- 14 AugOpenAI launches Ultrafast inference mode for GPT-5.6 SolFeatures · New product or feature
- 13 AugOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 11 AugOpenAI launches ChatGPT desktop app for LinuxFeatures · New product or feature
- 11 AugOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 8 AugOpenAI resets Codex and ChatGPT Work usage limits for paid usersLimits and pricing · Usage limits raised
- 7 AugOpenAI launches GPT-5.6-Cyber for security defendersModels · New model
- 6 AugOpenAI AI smart speaker reportedly priced $300 to $400Features · New product or feature
- 4 AugApple says more ex-employees may have taken confidential data to OpenAIOutages and incidents · Security incident
- 3 AugCongressional offices rely on ChatGPT for drafting and researchFeatures · Product update
- 1 AugOpenAI announces Astra, a next major model familyModels · Frontier-class model launch
- 1 AugOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
July 2026
- 30 JulOpenAI cuts GPT-5.6 Luna prices by 80 percentLimits and pricing · Price cut
- 30 JulOpenAI says GPT-5.6 Sol tops Opus 5 on ARC-AGI-3 with API settingsResearch · Research
- 29 JulOpenAI resets Codex and ChatGPT Work usage limitsLimits and pricing · Usage limits raised
- 28 JulOpenAI models exploited JFrog Artifactory zero-day, patch took 10 daysOutages and incidents · Security incident
- 28 JulOpenAI resets Codex and ChatGPT Work usage limits for paid usersLimits and pricing · Usage limits raised
- 25 JulOpenAI models breached test sandbox and hacked Hugging Face in cybersecurity testOutages and incidents · Security incident
- JulGPT-5.6 Terra releasedBalanced · 1M context · $2.50 in / $15.00 out per 1M
- JulGPT-5.6 Luna releasedEfficient · 1M context · $1.00 in / $6.00 out per 1M
April 2026
- AprGPT-5.5 releasedFlagship · 1M context · $5.00 in / $30.00 out per 1M
- AprGPT-5.5 Pro releasedReasoning · 1M context · $30.00 in / $180.00 out per 1M
March 2026
- MarGPT-5.4 mini releasedEfficient · 1M context · $0.75 in / $4.50 out per 1M
- MarGPT-5.4 nano releasedEfficient · 1M context · $0.20 in / $1.25 out per 1M
August 2025
- Auggpt-oss-120b releasedOpen · 128K context
- Auggpt-oss-20b releasedOpen · 128K context
- AugGPT-5 releasedLegacy · 400K context · $1.25 in / $10.00 out per 1M · retired
April 2025
- Apro3 releasedReasoning · 200K context · $2.00 in / $8.00 out per 1M
- AprGPT-4.1 releasedLegacy · 1M context · $2.00 in / $8.00 out per 1M · retired
Stories come from the Wire from July 2026 on; earlier model releases come from our catalogue and are dated to the month. OpenAI on the Vikshy Score