Best Z.ai model for coding
- GLM 5.3 leads
- 73.1
- models ranked
- 9
- lead over #2
- +2.1
Coding index · read October 21
As of October 21, 2026, Z.ai GLM 5.3 leads 9 scored Z.ai models with a coding index of 73.1, ahead of Z.ai GLM 5.3 Flash (71.0) and Z.ai GLM 4.5 (64.2).
This list narrows the best LLM for coding ranking.
Ordered by index, highest first. The dots show how many benchmarks stand behind each score.
| Rank | Model | Coding index | Evidence | Output $/Mtok |
|---|---|---|---|---|
| 1 | GLM 5.3 Z.ai | 73.1 | $1.40 | |
| 2 | GLM 5.3 Flash Z.ai | 71.0 | $0.50 | |
| 3 | GLM 4.5 Z.ai | 64.2 | $2.20 | |
| 4 | GLM 5 Z.ai | 59.7 | $3.20 | |
| 5 | GLM 5.2 Z.ai | 57.7 | $7.00 | |
| 6 | GLM 4.6 Z.ai | 52.2 | $2.20 | |
| 7 | GLM 5.1 Z.ai | 44.0 | $4.40 | |
| 8 | GLM 4.7 Z.ai | 33.6 | $1.98 | |
| 9 | GLM 5V Turbo Z.ai | 28.8 | $4.00 |
How this list is built
Generated from the dataset on every refresh. Nobody picks the order by hand.
Every Z.ai model with a Vibe Coding Index score, ordered as the ranking orders them: by how many benchmarks stand behind the score, then by the score.
- Aider polyglot leaderboard, fetched
- LiveBench, fetched , board updated October 14, 2026
- SWE-bench (swebench.com), fetched
- LMArena WebDev, fetched