$ diff glm-5-2 muse-spark
GLM-5.2 vs Muse Spark
Z.ai and Meta AI, side by side. Every value below is the one recorded on the model’s own wiki page, with its citation — nothing is estimated.
Z.aiGLM-5.2
- context
- 1M
- weights
- open
- $/M in
- —
- $/M out
- —
- context
- 1M
- weights
- open
- $/M in
- $1.25
- $/M out
- $4.25
What actually differs
- Context window
- Identical — both accept 1M tokens, so context length is not a reason to pick either.
- Weights
- Both publish weights — GLM-5.2 under MIT (unrestricted, "no regional limits"), Muse Spark under proprietary (closed / API-only, not open-weights). Check the licences rather than assuming they permit the same commercial use.
- Recency
- GLM-5.2 shipped 66 days after Muse Spark (2026-06-13 vs 2026-04-08).
Full spec
| Attribute | GLM-5.2 | Muse Spark |
|---|---|---|
| Developer | Z.ai | Meta AI |
| Released | 2026-06-13 | 2026-04-08 |
| Context window | 1,000,000 tokens | 1,000,000 tokens (1.1) |
| Pricing | not publicly listed as of 2026-07-13 (~1/6th GPT-5.5 API cost per VentureBeat) | $1.25/M input · $4.25/M output (Meta Model API, public preview) |
| License | MIT (unrestricted, "no regional limits") | proprietary (closed / API-only, not open-weights) |
| Availability | GLM Coding Plan (highest subscription tier), standalone API, open weights, NVIDIA NIM hosted | Meta Model API (public preview, US-based developers only) |
Values come from GLM-5.2 and Muse Spark, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing. How these pages are produced.