GLM-5.3 vs Hy3: Specs & Benchmark Comparison
GLM-5.3 is developed by Zhipu AI, while Hy3 comes from Tencent. Hy3 was released in July 2026, and GLM-5.3 followed a month later in August 2026. GLM-5.3 is the larger model at roughly 753 billion parameters, against 295 billion for Hy3.
The two models share 3 published benchmarks. GLM-5.3 leads on 3 of them. The widest gaps are on Toolathlon, where GLM-5.3 scores 73.0% against 48.5%; Terminal-Bench 2.1, where GLM-5.3 scores 88.0% against 71.7%. Averaged across everything we track, GLM-5.3 sits at 52.2% and Hy3 at 57.1%.
GLM-5.3 is available through an API at $1.40 per million input tokens with a 1M-token context window. We do not track a hosted API for Hy3, so pricing and context cannot be compared directly.
| Characteristic | GLM-5.3 | Hy3 |
|---|---|---|
| Company | Zhipu AI | Tencent |
| Release Date | August 14, 2026 | July 6, 2026 |
| Parameters | 753B | 295B |
| Multimodal | No | No |
| Context (input) | 1.0M | — |
| Context (output) | 131K | — |
| Input Price / 1M | $1.40 | — |
| Output Price / 1M | $4.40 | — |
| Average Score | 52.2% | 57.1% |
| Benchmarks | ||
| Toolathlon | 73.0% | 48.5% |
| Terminal-Bench 2.1 | 88.0% | 71.7% |
| NL2Repo | 58.0% | 45.6% |
Visual Benchmark Comparison
Verdict
GLM-5.3 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: GLM-5.3 — 0.5, Hy3 — 0.6.
GLM-5.3 is newer: released 8/14/2026 vs 7/6/2026.
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Frequently Asked Questions
Which is better for coding — GLM-5.3 or Hy3?
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The GLM-5.3 and Hy3 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GLM-5.3 or Hy3 page. See also the complete list of AI model comparisons.