GLM-5.2 vs Grok 4.5: Specs & Benchmark Comparison
GLM-5.2 is developed by Zhipu AI, while Grok 4.5 comes from xAI. GLM-5.2 was released in June 2026, and Grok 4.5 followed a month later in July 2026. GLM-5.2 has a published size of about 753 billion parameters; xAI has not disclosed the parameter count of Grok 4.5.
We have 4 benchmark results for GLM-5.2 and 4 benchmark results for Grok 4.5, but they overlap on a single test: GPQA, where Grok 4.5 scores 93.0% against 91.0%.
GLM-5.2 is the cheaper API at $1.40 per million input tokens and $4.40 per million output tokens, about 43% below Grok 4.5 at $2 and $6. GLM-5.2 takes the larger context window at 1M tokens, compared with 500K for Grok 4.5. GLM-5.2 accepts text as input, while Grok 4.5 accepts text and images.
| Characteristic | GLM-5.2 | Grok 4.5 |
|---|---|---|
| Company | Zhipu AI | xAI |
| Release Date | June 16, 2026 | July 16, 2026 |
| Parameters | 753B | — |
| Multimodal | No | Yes |
| Context (input) | 1.0M | 500K |
| Context (output) | 131K | — |
| Input Price / 1M | $1.40 | $2.00 |
| Output Price / 1M | $4.40 | $6.00 |
| Average Score | 94.3% | 76.0% |
| Benchmarks | ||
| GPQA | 91.0% | 93.0% |
Visual Benchmark Comparison
Verdict
GLM-5.2 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: GLM-5.2 — 0.9, Grok 4.5 — 0.8.
GLM-5.2 is 1.4x cheaper: input $1.40/1M vs $2.00/1M tokens.
GLM-5.2 supports a larger context: 1M vs 500K tokens.
Grok 4.5 is newer: released 7/16/2026 vs 6/16/2026.
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Frequently Asked Questions
Which is better for coding — GLM-5.2 or Grok 4.5?
Which model is cheaper — GLM-5.2 or Grok 4.5?
Which has a larger context window — GLM-5.2 or Grok 4.5?
The GLM-5.2 and Grok 4.5 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 Grok 4.5 page. See also the complete list of AI model comparisons.