Model comparison
Grok 4.5 vs GLM-5.2
- Input
- $2.00
- Output
- $6.00
- Context
- not published
- Released
- 2026-07-09
- Input
- $1.40
- Output
- $4.40
- Context
- 1M
- Released
- 2026-06-16
Grok 4.5 scores higher on 2 of the 2 benchmarks both models report; GLM-5.2 is cheaper on input tokens ($1.4 vs $2 per 1M, 1.4×); GLM-5.2 ships open weights while Grok 4.5 is API-only.
Specs and pricing side by side
| Spec | Grok 4.5 | GLM-5.2 |
|---|---|---|
| Maker | SpaceXAI | Z.ai (Zhipu / GLM) |
| Released | 2026-07-09 | 2026-06-16 |
| Context window | not published | 1M |
| Max output | not published | 128K |
| Input price | $2.00 | $1.40 |
| Output price | $6.00 | $4.40 |
| Parameters | not published | 744B total · 40B active |
| License | Proprietary | MIT |
| Weights | API only | Open weights |
| Modalities | Text, Vision | Text |
Not published by either maker: knowledge cutoff.
Benchmarks both models report
| Benchmark | Grok 4.5 | GLM-5.2 |
|---|---|---|
| Terminal-Bench 2.1 | 83.3% | 82.7% |
| SWE-Bench Pro | 64.7% | 62.1% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick Grok 4.5 if…
- You care about Terminal-Bench 2.1, SWE-Bench Pro (it scores higher on 2 shared benchmarks).
- You need Vision input, which GLM-5.2 lacks.
- Your use case is: reach for it for agentic coding inside Cursor and Grok Build on a Claude Opus-scale budget.
Pick GLM-5.2 if…
- Cost matters: input tokens cost 1.4× less ($1.4 vs $2 per 1M).
- You want to self-host or fine-tune (open weights, MIT).
- Your use case is: long-horizon, project-scale coding agents over large repositories.
FAQ
Which is better, Grok 4.5 or GLM-5.2?
Grok 4.5 scores higher on 2 of the 2 benchmarks both models report; GLM-5.2 is cheaper on input tokens ($1.4 vs $2 per 1M, 1.4×); GLM-5.2 ships open weights while Grok 4.5 is API-only. The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is GLM-5.2?
Grok 4.5: $2.00 input, $6.00 output. GLM-5.2: $1.40 input, $4.40 output (list API prices as published by each maker).
Is Grok 4.5 newer than GLM-5.2?
Grok 4.5 was released 2026-07-09; GLM-5.2 was released 2026-06-16.