GLM-5.2 vs Muse Spark 1.2: Specs & Benchmark Comparison
GLM-5.2 is developed by Zhipu AI, while Muse Spark 1.2 comes from Meta. GLM-5.2 was released in June 2026, and Muse Spark 1.2 followed 2 months later in August 2026. GLM-5.2 has a published size of about 753 billion parameters; Meta has not disclosed the parameter count of Muse Spark 1.2.
We have 4 benchmark results for GLM-5.2 and 3 benchmark results for Muse Spark 1.2, but they were measured on different benchmarks, so there is no like-for-like scoreboard.
Muse Spark 1.2 is the cheaper API at $0.10 per million input tokens and $0.20 per million output tokens, roughly 14 times cheaper than GLM-5.2 at $1.40 and $4.40. Both accept a context window of about 1M tokens. GLM-5.2 accepts text as input, while Muse Spark 1.2 accepts text and images.
| Characteristic | GLM-5.2 | Muse Spark 1.2 |
|---|---|---|
| Company | Zhipu AI | Meta |
| Release Date | June 16, 2026 | August 5, 2026 |
| Parameters | 753B | — |
| Multimodal | No | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 131K | 131K |
| Input Price / 1M | $1.40 | $0.10 |
| Output Price / 1M | $4.40 | $0.20 |
| Average Score | 94.3% | 71.0% |
Verdict
Muse Spark 1.2 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: GLM-5.2 — 0.9, Muse Spark 1.2 — 0.7.
Muse Spark 1.2 is 19.3x cheaper: input $0.10/1M vs $1.40/1M tokens.
GLM-5.2 supports a larger context: 1M vs 1M tokens.
Muse Spark 1.2 is newer: released 8/5/2026 vs 6/16/2026.
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Frequently Asked Questions
Which is better for coding — GLM-5.2 or Muse Spark 1.2?
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The GLM-5.2 and Muse Spark 1.2 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GLM-5.2 or Muse Spark 1.2 page. See also the complete list of AI model comparisons.