# pi-synthetic: v0.19.0

release · 2026-06-18 · #pi-synthetic · v0.19.0

### Minor Changes

- 181230b: Add GLM-5.2 model and update `syn:large:text` alias

  - Add `hf:zai-org/GLM-5.2`:
    - contextWindow: 524288
    - maxTokens: 65536
    - cost: input $1.4, output $4.4 per 1M tokens (cacheRead $1.4)
    - input: text only
    - reasoning: two effective levels — `max` (default, highest) and `high` (lower), per the GLM-5.2 chat template. The Synthetic OpenAI shim rejects literal `max` (and `xhigh` errors), so `thinkingLevelMap` maps Pi's `high` -> `"high"` and `xhigh` -> `"medium"` (which falls through to `max`); `minimal`/`low`/`medium` are hidden.
  - Update `syn:large:text` alias target from `hf:zai-org/GLM-5.1` to `hf:zai-org/GLM-5.2`. Alias inherits the new two-level thinking map from its target.

- [GitHub release](https://github.com/aliou/pi-synthetic/releases/tag/v0.19.0)
- [npm](https://www.npmjs.com/package/@aliou/pi-synthetic/v/0.19.0)