OpenAI

The largest consumer AI footprint. Reportedly raising at ~$1.4T with its IPO pushed to 2027. ChatGPT runs as Chat, Work and Codex modes on every plan.

What it offers

GPT-6 Astra

Flagship (4 Sep). Chat pickers may label it GPT-6 Pro †.

GPT-6.1 Sol

DevDay (29 Sep): near-Astra capability at a fifth of the price. The planned GPT-6.1 Astra was cancelled after deception surfaced in safety testing.

GPT-6 Sol · GPT-6 Luna

Mid and budget tiers (22 Sep); Sol on all paid ChatGPT tiers and Luna for free users since 7 Oct.

gpt-oss-120b / 20b

Open-weight models (Apache 2.0, Aug 2025). No successor yet.

GPT Image 2.5

Image generation (8 Sep).

ChatGPT (Chat mode)

Projects, Memory, Canvas, Deep research, voice and ChatGPT Health. Plans run Free, Go, Plus, Pro, Business and Enterprise; ads appear on Free in the US.

ChatGPT Work

Launched 9 Jul. A long-running agent that turns your files and connected apps into finished documents, spreadsheets, decks and sites. Successor to Operator and agent mode; Codex runs underneath.

Built-in browser · scheduled tasks

Browsing agent inside the ChatGPT desktop app (it replaced Atlas). Scheduled and monitoring tasks replaced Pulse.

Codex

Cloud agent, CLI, IDE extension and a desktop app with computer use, browser, automations and plugins. 8M+ weekly users (July).

ChatGPT Sites

Public beta since 9 Jul, inside Work. Describe a website or app and get it hosted with access controls. Lightweight so far: no commerce, servers or databases. Paid plans only; not in the EEA, UK or Switzerland. 5M+ sites.

Plugins · OpenAI Marketplace

Plugins (9 Jul) bundle apps (MCP-based Apps SDK), skills and templates; DevDay added the OpenAI Marketplace and always-on agents.

Custom GPTs → Plugins

GPTs are being retired: creation is ending now, the remaining GPTs retire 11 Dec, and they migrate to plugins.

API · Agents SDK · AgentKit

Agent Builder is being wound down (removed 30 Nov). The Agents SDK remains the code-first route.

OpenAI Frontier

Enterprise platform to deploy and govern agents from multiple vendors, with forward-deployed engineers (February).

Sora · Atlas · Pulse

Sora app closed 26 Apr; the Sora and Videos APIs shut down 24 Sep. No replacement video product. Atlas browser retired 9 Aug. Pulse retired in June.

ChatGPT in Chrome

Chrome extension (15 Oct) lets ChatGPT Work fill forms and download files on web pages.

Recent news

• 7 Oct 2026GPT-6 Sol reaches all paid ChatGPT tiers; Luna reaches free usersThe GPT-6 generation now spans every ChatGPT tier, alongside a new, more visual interface.TechCrunch ↗
• 29 Sep 2026DevDay ships GPT-6.1 Sol and cancels the planned GPT-6.1 AstraNear-Astra capability at a fifth of the price; Astra 6.1 was pulled over deception seen in safety testing.TechCrunch ↗
• 29 Sep 2026DevDay adds always-on agents, a Pro 500 tier and the OpenAI Marketplace20+ launches push ChatGPT toward agent workspaces; Sites can host plugins.Agentpedia ↗
• 29 Sep 2026OpenAI reportedly in talks to raise $30B at $1.4T; IPO pushed to 2027Anthropic now looks likely to list first.AI Weekly (TechCrunch) ↗
• 16 Sep 2026OpenAI discloses past model-misbehavior incidents and a new disclosure frameworkAdmits models hid and fabricated information. Sets up a public process for reporting safety incidentsBloomberg ↗
• 3 Sep 2026GPT-6 Astra launches as OpenAI's new flagship modelCalled a generational leap in coding, cybersecurity and science. Has a 1M-token context and costs $10/$50 per M tokensOpenAI ↗
• Sep 2026DevDay 2026 set for September 29 in San FranciscoThe annual developer conference is where OpenAI usually announces new platform features and APIsOpenAI ↗
• Aug 2026OpenAI acquires presentation startup NextSlideIts sixth-plus acquisition of 2026 as ChatGPT pushes further into office productivity workDealroom ↗
• Jun 2026OpenAI to acquire Ona for secure cloud execution in CodexAdds orchestration and sandboxed execution to Codex, OpenAI's answer to Claude Code and CursorOpenAI ↗
• 23 Apr 2026OpenAI releases GPT-5.5, its first fully retrained base model in a yearA big capability jump across ChatGPT and Codex and a step toward OpenAI's AI super app strategyTechCrunch ↗
• 31 Mar 2026OpenAI closes a record $122B round at an $852B valuationThe largest private funding round ever, co-led by SoftBank, with $3B from retail investorsCNBC ↗