Model comparison
GLM-4.6 vs Hy4 preview
Hy4 preview is the stronger model overall, scoring 44.6 to 40.9 on the Noometry Index.
Last verified . 1 shared benchmarks.
TencentSummary
- They share 1 benchmark with published results for both. GLM-4.6 scores higher in 0 categories and Hy4 preview in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 54.5 to 36.4.
- GLM-4.6 is cheaper at $0.60 / $2.20 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 205K.
Side by side
| GLM-4.6 | Hy4 preview | |
|---|---|---|
| Provider | Z.ai (Zhipu) | Tencent |
| Noometry Index | 40.9 | 44.6 |
| Released | 2025-09-30 | 2026-08-28 |
| Weights | Open | Open |
| Context window | 205K | 1.05M |
| Max output | 131K | 64K |
| Input $ / M tokens | $0.60 | $0.83 |
| Output $ / M tokens | $2.20 | $2.50 |
| Results tracked | 29 | 3 |
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Category by category
Coding Hy4 preview leads
GLM-4.6: 39.9 (#137), Hy4 preview: 51.4 (#36)
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| LMArena WebDev | 1339 | 1633 |
| SWE-bench Verified (bash only) | 55.4% | — |
| SciCode | 38.4% | — |
| LMArena Coding | 1449 | — |
| ALE-Bench | 340.82 | — |
Agentic & Tool Use Not comparable
GLM-4.6: 32.1 (#60), Hy4 preview: —
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| Terminal-Bench | 24.5% | — |
| Berkeley Function Calling Leaderboard | 72.4% | — |
Reasoning Hy4 preview leads
GLM-4.6: 23.1 (#168), Hy4 preview: 30.6 (#75)
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| Kagi LLM Benchmark | 47.4% | — |
| NYT Connections (extended) | — | 68.2% |
| CritPt | 1.1% | — |
| LMArena Hard Prompts | 1440 | — |
Math Hy4 preview leads
GLM-4.6: 36.4 (#115), Hy4 preview: 54.5 (#37)
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| ProofBench | — | 75% |
| LMArena Math | 1431 | — |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Not comparable
GLM-4.6: 39.6 (#118), Hy4 preview: —
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| Vectara Hallucination Rate | 9.5% | — |
| LMArena Expert | 1432 | — |
Multilingual Not comparable
GLM-4.6: 53.6 (#62), Hy4 preview: —
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| LMArena Non-English | 1426 | — |
| LMArena Chinese | 1500 | — |
| LMArena French | 1459 | — |
| LMArena German | 1447 | — |
| LMArena Japanese | 1394 | — |
| LMArena Korean | 1401 | — |
| LMArena Russian | 1418 | — |
| LMArena Spanish | 1436 | — |
Instruction Following Not comparable
GLM-4.6: 74.5 (#93), Hy4 preview: —
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| LMArena Instruction Following | 1410 | — |
Long Context Not comparable
GLM-4.6: 43.4 (#91), Hy4 preview: —
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| LMArena Longer Query | 1423 | — |
Writing & Preference Not comparable
GLM-4.6: 61.3 (#86), Hy4 preview: —
| Benchmark | GLM-4.6 | Hy4 preview |
|---|---|---|
| LMArena Text | 1440 | — |
| LMArena Creative Writing | 1411 | — |
| EQ-Bench Creative Writing | 1411 | — |
| LMArena Multi-Turn | 1427 | — |
Frequently asked questions
Is GLM-4.6 better than Hy4 preview?
Hy4 preview is the stronger model overall, scoring 44.6 to 40.9 on the Noometry Index.
Which is cheaper, GLM-4.6 or Hy4 preview?
GLM-4.6 is cheaper. It lists at $0.60 per million input tokens and $2.20 per million output tokens; Hy4 preview lists at $0.83 and $2.50.
Is GLM-4.6 or Hy4 preview better for coding?
Hy4 preview scores higher on coding benchmarks: 51.4 versus 39.9 in the Noometry coding category.
Which has the bigger context window?
Hy4 preview does, with 1.05M tokens against 205K.
How many benchmarks do GLM-4.6 and Hy4 preview share?
1 benchmark has published results for both models. GLM-4.6 has 29 scored results on Noometry and Hy4 preview has 3.