The AI Wire ●

Chatter points to a Tuesday (Sept 22) release of GPT-6 Sol, a faster, cheaper everyday tier below GPT-6 Astra. The fuel: Sam Altman said his big launch slipped from last week to this week, and Tibo Sottiaux teased DevDay-level launches. But earlier rumored dates (Sept 17) came and went with nothing, and OpenAI's catalog shows no gpt-6-sol — only gpt-6-astra and gpt-6-astra-pro. Rumored positioning mirrors the GPT-5.6 Sol playbook: cheaper with higher usage limits. Also new: edgen.tech reports developers this week found API requests quietly rerouted to a model that does not officially exist — 'gpt-6-sol' — described by leaked testers as near-flagship on coding at a fraction of Astra's price, with DevDay (Sept 29) floated as the venue where pricing gets confirmed. OpenAI still shows no gpt-6-sol in its catalog; Tuesday (Sept 22) remains the rumor's next date to watch.

A Sunday report (via the Daily Star, aggregated in the AI Agents News Brief) claims Anthropic is considering a new model launch to compete with OpenAI's GPT-6 Astra, which has reportedly captured a significant share of enterprise AI spending, outpacing Claude Fable. Sourcing is thin and single-origin, and the timing is notable: it comes despite Anthropic's CEO publicly calling for a slowdown in AI development.

Leakers claim a first Gemini 4 Pro checkpoint exists and point to October 2026 for launch, with Google skipping the delayed Gemini 3.5 Pro entirely. Spicier claims say a 'gemini-3.8-flash' topping AI Arena charts is actually Gemini 4 Pro incognito, beating GPT-6 Astra and Fable 5.1. Confirmed: Google says Gemini 4 pre-training began in July. No date, specs, or benchmarks are official.

Developers on X report that Opus 5 requests in Claude Code are being served by a new 'Opus 5.2' model slug, suggesting Anthropic skipped 5.1 entirely. Early community testers put it near GPT-6 Astra tier for coding. But Anthropic has confirmed nothing, its docs still list claude-opus-5 as current, and no opus-5-2 appears in OpenRouter's catalog. No official pricing exists. New corroboration: the 'claude-opus-5-2' model slug has surfaced in Microsoft Foundry with reasoning_effort tiers (low/medium/high/xhigh/max), and third-party API listings report it reachable across Claude Code, Chat, and Cowork. Anthropic itself has still confirmed nothing — its docs still list claude-opus-5 as current — so this stays a rumor.

Unconfirmed reports and speculation suggest OpenAI's next generation after Astra may be GPT-7 ("Bell"), aimed at improving multimodal capabilities and cost-efficiency. No official confirmation from OpenAI.