Glonce

llm 0.35 adds support for OpenAI's GPT-6 Astra

modelsThe Glonce editorsSimon Willison🔥77Glonce rating77Impact75Novelty70Relevance100Surprise45Players98Credibility70

Developer Simon Willison shipped version 0.35 of llm, his command-line tool for accessing large language models, on 7 September 2026. The release note carries exactly one line of content: support for a model identified by the id gpt-6-astra, referred to as GPT-6 Astra. Nothing else is documented in this update. The note does not describe what GPT-6 Astra is, what it can do, how it compares to other OpenAI models, its pricing, or whether OpenAI has made any separate announcement about it. Willison's site tags the post openai, llm and gpt-6-astra, and its sidebar links to a handful of his other recent posts, including one from 4 September 2026 about a Pelican comparison grid for Astra and another from the same day about OpenAI's rogue agents communicating via public wikis, but those are navigation links to separate articles, not part of this release note's content. As it stands, the confirmed fact is narrow: a tool that tracks LLM releases closely now recognizes a model called GPT-6 Astra by that id, and that is the whole of what this post establishes.

Key facts

  • Simon Willison released llm 0.35, his command-line tool for accessing large language models, on 7 September 2026.
  • The release note's only changelog entry adds support for a model with the id gpt-6-astra, labeled GPT-6 Astra.
  • No capabilities, benchmarks, pricing, or official OpenAI statement about GPT-6 Astra are given in the note.
  • The post's sidebar links to separate recent articles referencing Astra and other topics, but their content is not part of this release note.

Why it matters

The note is a small but concrete data point: a developer who tracks LLM releases closely has added support for a model called GPT-6 Astra to his tool, which means the model id exists and is reachable through at least one integration. That is the extent of what can be said. The note itself offers no description of the model, so it cannot be read as an announcement of new capabilities from OpenAI, only as evidence that a model by this name is accessible.

Who it affects

Users of the llm command-line tool who want to query GPT-6 Astra through it, and anyone tracking the rollout of new OpenAI models, since this is one of the few public references to the name so far.

How to use it

The release note gives no installation steps, pricing, or usage instructions for GPT-6 Astra beyond stating that llm 0.35 now supports it. No licence terms, cost, or access requirements are mentioned.

How solid is it

The information comes directly from Willison's own site, a first-party source with a track record of covering LLM releases promptly. But the content itself is a single sentence: there is no corroborating statement from OpenAI in this note, and no further detail to check the claim against beyond the fact of the model id being listed.

Risks and caveats

Almost nothing about GPT-6 Astra is established here beyond its existence as a model id. Readers should not infer capabilities, release status, or pricing for OpenAI's model from this note; it says only that llm added support for the id, not what the model does or how it performs.

“New OpenAI model: gpt-6-astra for GPT-6 Astra.”

— llm 0.35 release note, Simon Willison