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GLM-5 vs Grok 4
A detailed comparison of GLM-5 (Zhipu AI) and Grok 4 (xAI) across pricing, performance, and features.
Pricing Comparison
| Metric | GLM-5 | Grok 4 | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.00 | $3.00 | +200% |
| Output / 1M tokens | $3.20 | $15.00 | +369% |
| Context window | 200K | 128K | — |
| Max output | 128K | 16.384K | — |
Benchmark Comparison
| Benchmark | GLM-5 | Grok 4 |
|---|---|---|
| MMLU-Pro | 70.4% | 86% |
| HumanEval | 91% | 93% |
| GPQA | 72% | 72% |
Capabilities
| Capability | GLM-5 | Grok 4 |
|---|---|---|
| code | ✓ | ✓ |
| reasoning | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
| web-search | ✗ | ✓ |
GLM-5 Strengths
- ✓Open-weight (MIT license) — self-hostable
- ✓77.8% SWE-Bench Verified — top-tier coding
- ✓128K max output — huge generation window
GLM-5 Weaknesses
- ✗MMLU-Pro lags behind Western flagships
- ✗744B parameters — heavy to self-host
- ✗China-based — availability concerns
Grok 4 Strengths
- ✓Built-in web search and real-time data
- ✓Strong reasoning
- ✓$25 free credits for new users
Grok 4 Weaknesses
- ✗Premium pricing for its benchmark tier
- ✗Additional charges for tool invocations ($2.50-$5/1K calls)
- ✗Smaller ecosystem than OpenAI/Anthropic
Quick Verdict
Best value: GLM-5 is the more affordable option at $1/$3.2 per 1M tokens.
Higher benchmarks: Grok 4 scores higher on average across available benchmarks (83.7% avg).
Larger context: GLM-5 supports 200K tokens.
Choose GLM-5 if cost matters most. Choose Grok 4 if you need the best possible quality for complex tasks.