Model comparison
GPT-5.4 Pro vs GLM-5
- Input
- $30.00
- Output
- $180.00
- Context
- 1.05M
- Released
- 2026-03-05
- Input
- $1.00 / 1M tokens
- Output
- $3.20 / 1M tokens
- Context
- 200K
- Released
- 2026-02-11
GPT-5.4 Pro scores higher on 2 of the 2 benchmarks both models report; GLM-5 is cheaper on input tokens ($1 vs $30 per 1M, 30×); GPT-5.4 Pro has the larger context window (1.05M vs 200K); GLM-5 ships open weights while GPT-5.4 Pro is API-only.
Specs and pricing side by side
| Spec | GPT-5.4 Pro | GLM-5 |
|---|---|---|
| Maker | OpenAI | Z.ai (Zhipu / GLM) |
| Released | 2026-03-05 | 2026-02-11 |
| Context window | 1.05M | 200K |
| Max output | 128K | 128Ksame |
| Input price | $30.00 | $1.00 / 1M tokens |
| Output price | $180.00 | $3.20 / 1M tokens |
| Parameters | not published | 744B total / 40B active (MoE) |
| License | Proprietary | MIT |
| Weights | API only | Open weights |
| Modalities | Text, Vision | Text |
| Knowledge cutoff | August 31, 2025 | not published |
Benchmarks both models report
| Benchmark | GPT-5.4 Pro | GLM-5 |
|---|---|---|
| GPQA Diamond | 94.4% | 86% |
| BrowseComp | 89.3% | 62% |
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 GPT-5.4 Pro if…
- You care about GPQA Diamond, BrowseComp (it scores higher on 2 shared benchmarks).
- You need the longer context (1.05M vs 200K).
- You need Vision input, which GLM-5 lacks.
- Your use case is: long-horizon professional deliverables: financial models, slide decks, and legal analysis.
Pick GLM-5 if…
- Cost matters: input tokens cost 30× less ($1 vs $30 per 1M).
- You want to self-host or fine-tune (open weights, MIT).
- Your use case is: autonomous coding agents that plan, edit across many files, run tests and iterate on fixes.
FAQ
Which is better, GPT-5.4 Pro or GLM-5?
GPT-5.4 Pro scores higher on 2 of the 2 benchmarks both models report; GLM-5 is cheaper on input tokens ($1 vs $30 per 1M, 30×); GPT-5.4 Pro has the larger context window (1.05M vs 200K); GLM-5 ships open weights while GPT-5.4 Pro 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?
GPT-5.4 Pro: $30.00 input, $180.00 output. GLM-5: $1.00 / 1M tokens input, $3.20 / 1M tokens output (list API prices as published by each maker).
What are the context windows of GPT-5.4 Pro and GLM-5?
GPT-5.4 Pro offers 1.05M with up to 128K output; GLM-5 offers 200K with up to 128K output.
Is GPT-5.4 Pro newer than GLM-5?
GPT-5.4 Pro was released 2026-03-05; GLM-5 was released 2026-02-11.