GPT-6 Sol/Luna and Aeon Agent Rumors Surge Amid Technical Leaks, No Official Confirmation
During Sep 21–23, rumors about OpenAI's next-gen GPT-6 (Sol/Luna variants) and the persistent agent Aeon converged from multiple anonymous leaks and community evidence: Azure config files, Sub2API response metadata, and Codex code fields were cited as technical corroboration, and on Sep 23 users claimed both versions were already grey-rolling out in ChatGPT with up to 6x Astra's speed. Yet debunker TokenGremlin refuted claims like a "Tuesday launch." Nothing is officially confirmed and the picture is mixed.
Confirmed
- scaling01 teased GPT-6-Luna and GPT-6-Sol as coming "soon," later hinting an "Azure slip" exposed the names, and added Qwen4 is "quite close" too.
- kimmonismus relayed leaker bridgemindai that GPT-6 Sol, GPT-6 Luna, and GPT-6 "Astra Minor" appeared overnight in Microsoft Azure config files, with GPT-5 series changes in the same commit; Reddit users posted screenshots of the same three entries.
- imjustnewatai shared a Sub2API screenshot where a request sent as gpt-5.6-sol returned response.model = gpt-6-sol upstream, triggering a Model mismatch warning; the community inferred grey-testing of a new model.
- Developer ChrisGPT found numerous Aeon persistent-agent fields in shipped Codex code, such as aeonModelId and allowAeonDraftModelSelection.
- TokenGremlin debunked the "GPT-6 Sol launches Tuesday" claim—no well-informed leaker confirmed a date—calling it a distilled, cheaper Astra.
Unconfirmed
- danielmac8's relay claims the Terra tier is being cut; repligate's version says Sol may join Terra and Luna as a trio, and that OpenAI is doing RL training for 6.1 codenamed Astra.
- haider1's version: GPT-6 sol sits between GPT-5.6 sol and GPT-6 astra in capability with far fewer tokens and Gemini 3.8 Flash-level efficiency; other leaks cite pricing of $2.50/$15, half of GPT-5.6 Sol.
- imjustnewatai and YassMob relayed rumors of a Tuesday launch and an internal "Bel" model deemed AGI-level—exactly what TokenGremlin debunked; ChrisGPT relayed a "Sol launches today, before Aeon" version.
- On Sep 23, kimmonismus said multiple users reported Sol and Luna grey-rolling out in ChatGPT, promising benchmarks once granted access; basedjensen relayed claims of grey testing with up to 6x Astra's speed at equal reasoning effort, plus a group-chat agent preview. Neither has official confirmation.
- Aeon rumors are dense but unofficial: possible launch this week or Thursday morning, built with GPT-Astra, an always-on "ChatGPT's answer to Grok Bot"; The Information (via dotey) reports OpenAI is rushing a "Codex Bot"; some speculate a DevDay reveal.
- Multiple posts claim Anthropic counter-upgrades (Fable, Opus, Sonnet 5.5 at discount; Haiku possibly discontinued), read as a preemption strategy.
Why it matters
If the halved pricing holds, GPT-6 Sol could sharply cut unit costs and spark a price war. The Azure, Sub2API, and Codex evidence lends technical plausibility, and the fresh "grey rollout, 6x speed" claims strengthen near-launch speculation—but still without firsthand proof. TokenGremlin's debunking shows the leak ecosystem contradicts itself on timing and positioning, and claims like "Bel is AGI" look like hype. Aeon vs. Grok Bot and Anthropic's parallel upgrades signal an intense escalation cycle; all information comes from anonymous accounts and unverified media relays, so treat with caution.
2026-09-21 ~ 2026-09-23 · 33 related posts
- Episode 1: GPT-6 Sol/Luna and Aeon Agent Rumors Surge Amid Technical Leaks, No Official Confirmation(2026-09-21, 33 posts)
- Episode 2: GPT-6 Sol and Luna surface in Codex code and interfaces(2026-09-22, 4 posts)
- Episode 3: OpenAI Launches GPT-6 Sol and Luna Across API, Codex and ChatGPT Work(2026-09-23, 11 posts)
- Episode 4: Rumors Swirl Over OpenAI's GPT-6 Astra Minor(2026-09-23, 3 posts)
Primary sources
- Rumor: GPT-6 Sol Lands Tuesday, Internal 'Bel' Deemed AGI; Opus 5.5 May Drop Monday — imjustnewatai · 2026-09-21
- GPT-6 sol increasingly rumored for next-week launch: faster, cheaper, between 5.6 and 6 astra — haider1 · 2026-09-21
- Leaker debunks GPT-6 Sol rumors: no launch date, a distilled cheap variant of Astra — i_dg23 · 2026-09-21
- Rumor: GPT-6-Sol Due Tuesday, Opus 5.5 This Week, 'Bel' Called AGI Internally — CurieuxExplorer · 2026-09-21
- Rumor: Opus 5.5 and GPT-6 Sol dropping tomorrow, but this poster bets nothing beats Astra — patience_cave · 2026-09-21
- Scoop: OpenAI preps GPT-6 Sol and Luna launch as Anthropic nears Opus 5.5 — daniel_mac8 · 2026-09-21
- OpenAI reportedly building new features to rival Grok Bot's growing popularity — Polymarket · 2026-09-21
- OpenAI builds its answer to Grok Bot; researchers nervous about AI progress — steph_palazzolo · 2026-09-22
- OpenAI's rumored 'Aeon' is a persistent reasoning mode that runs until the task is done — imjustnewatai · 2026-09-22
- Rumored OpenAI reasoning mode "Aeon" would persist until the task is done — imjustnewatai · 2026-09-22
- GPT-6 Sol rumored to launch Tuesday at half price as Anthropic readies Opus 5.5 counterpunch — 新智元 · 2026-09-22
- Rumors swirl of OpenAI unveiling a Grok bot rival at DevDay — imjustnewatai · 2026-09-22
- [source] GPT-6-Luna and GPT-6-Sol rumored imminent, names possibly leaked via Azure — scaling01 · 2026-09-22
- Azure "oopsie" reportedly leaks GPT-6-Luna and GPT-6-Sol names — scaling01 · 2026-09-22
- [source] Leak hints GPT-6 Sol may already serve some GPT-5.6 Sol traffic — imjustnewatai · 2026-09-22
- GPT-6 Sol may already be live in shadow traffic, API mismatch screenshots suggest — imjustnewatai · 2026-09-22
- Leak: GPT-6 to split into Sol and Luna as community begs Anthropic to keep Haiku 4.5 on API — repligate · 2026-09-22
- [source] Codex code leak reveals Aeon, OpenAI's rumored persistent agent, launch may be imminent — ChrisGPT · 2026-09-22
- OpenAI reportedly rushing Codex Bot to rival Grok Bot, warns on recursive self-improvement — dotey · 2026-09-22
- Community guesses an AI release week: Opus 5.5 and GPT-6 Sol — MickeySteamboat · 2026-09-22
- Rumored OpenAI 'Aeon' agent may launch this week, GPT-6 Sol tomorrow — 141_1337 · 2026-09-22
- Leaked: OpenAI reportedly building always-on agent 'Aeon' to counter xAI's Grok Bot — koltregaskes · 2026-09-22
- Leak: OpenAI's new agent reportedly named Aeon, launch expected Thursday to rival Grok Bot — ZeroStateReflex · 2026-09-22
- GPT-6-Sol Reportedly Launching Today, Expected Cheaper Than Astra at Similar Intelligence — kimmonismus · 2026-09-22
- Leak Claims GPT-6 Codenamed Sol Ships Today, Ahead of Aeon — ChrisGPT · 2026-09-22
- OpenAI teases big Tuesday release, GPT-6 Sol and Luna expected pre-DevDay — testingcatalog · 2026-09-22
- GPT-6 Sol, Luna and Astra Minor spotted in Azure config amid rumored Opus 5.5 double drop — kimmonismus · 2026-09-22
- Rumor: GPT-6-Sol may ship with an Ultrafast mode at 750 tokens per second — kimmonismus · 2026-09-22
- GPT-6 Sol, Luna and 'Astra Minor' reportedly spotted in Azure model config — 141_1337 · 2026-09-22
- Leak claims GPT-6-sol is up to 6x faster than astra in grey testing; agent group-chat teased — basedjensen · 2026-09-23
- GPT-6 Sol and Luna reportedly rolling out in ChatGPT, benchmarks pending — kimmonismus · 2026-09-23