Grok 4.20
GLM-5.1
Decision Recommendation
⚖️ Editorial Verdict: In our analysis, GLM-5.1 is the premium intelligence choice, scoring 6.6% higher on coding benchmarks. However, Grok 4.20 compensates by delivering 1.0x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Grok 4.20 offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GLM-5.1 fully justifies the cost.
Grok 4.20
Benchmarks & Scores
Cost & Performance
GLM-5.1
Benchmarks & Scores
Cost & Performance
Frequently Asked Questions
GLM-5.1 is cheaper than Grok 4.20. GLM-5.1 has a blended cost of $1.50/1M tokens, which is about 2.0x cheaper than Grok 4.20 at $3.00/1M tokens.
Speed data is not available for GLM-5.1, while Grok 4.20 generates 233 tokens per second.
GLM-5.1 is better for coding tasks. It scores 58.4% on coding evaluations (swe-bench-pro) compared to Grok 4.20 which scores 51.8%.
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