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GLM 4.7 vs GLM 5.1

Head to head on 22 shared benchmarks, with price, context window, and release dates.

Benchmark scores

43

evals · sort by any column, ⤢ to expand fullscreen

Model
GLM 5.1

Zai

64.5%1589elo73.533.5%83.9%27.9%52.0%72.7%75.4%63.2%68.5%71.8%84.9%72.5%41.6%72.3%85.4%22.2%36.1%71.2%35.6%97.1%-20.8%35.9%1.1340.0%--44.8%34.7%15.1%---67.0%--34.6%5.2469.852.5%31.5%53.6%
GLM 4.7

Zai

46.4%1411elo662.4%66.4%6.4%54.6%60.8%73.1%55.2%35.7%65.2%76.0%59.7%32.8%68.6%79.4%6.0%35.4%68.8%30.3%94.2%48.0%----46.7%28.6%---90.0%56.2%33.3%-33.3%100.0%-----51.9%
2 / 2 models
AttributeGLM 4.7

Zai

GLM 5.1

Zai

DescriptionGLM-4.7 is an AI model from Zai, released with open weights.GLM-5.1 is an AI model from Zai, released with open weights.
FamilyGlmGlm
Params--
Open weightsopenopen
Licensemitmit
Released22 Dec 20257 Apr 2026
Context204,800204,800
Input $/1M$0.60$1.39
Output $/1M$2.20$4.40
Cache read $/1M$0.080$0.234
Cache write $/1M--
Speed0 tok/s0 tok/s
Latency0.00 s0.00 s
Modalitiestexttext
Providers--
PublisherZaiZai
Reported scores

FAQ

Is GLM 4.7 or GLM 5.1 better?
Across the 22 benchmarks both models report on Sophon, GLM 5.1 leads on 21 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do GLM 4.7 and GLM 5.1 compare on GPQA Diamond?
GLM 4.7 scores 66.4% and GLM 5.1 scores 83.9% on GPQA Diamond.
Which is cheaper, GLM 4.7 or GLM 5.1?
GLM 4.7 is cheaper at $2.20 per million output tokens against $4.40 for GLM 5.1 - about 2.0x.
When were GLM 4.7 and GLM 5.1 released?
GLM 4.7 was released 22 Dec 2025 by Zai. GLM 5.1 was released 7 Apr 2026 by Zai.

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