modelgrep

Best Z.ai Models for Writing

Match · Updated July 2026

The best Z.ai model for writing is GLM 5.2 — 51.1 intelligence with the context to hold a full long-form draft. GLM 5.1 (40.2) and GLM 5 (39.5) round out the top three.

51.1Intelligence
$0.818Input /M
1.0MContext

The best AI models for writing — drafting, editing, long-form content and creative work — ranked by general capability (the Artificial Analysis Intelligence Index) among models with the context to hold a full draft. There is no single writing benchmark, so this ranking uses overall intelligence as the proxy that correlates best with prose quality, restricted to models with at least 100K tokens of context.

  1. 1z-ai logo
    glm-5.2
    ReasoningToolsJSON51.1 intel · $0.818/M · 1.0M ctx
    51.1
    Intelligence
  2. 2z-ai logo
    glm-5.1
    ReasoningToolsJSON40.2 intel · $0.966/M · 205K ctx
    40.2
    Intelligence
  3. 3z-ai logo
    glm-5
    ReasoningToolsJSON39.5 intel · $0.950/M · 205K ctx
    39.5
    Intelligence
  4. 4z-ai logo
    glm-5-turbo
    ReasoningToolsJSON38.1 intel · $1.20/M · 203K ctx
    38.1
    Intelligence
  5. 5z-ai logo
    glm-5v-turbo
    ReasoningToolsJSON+134.5 intel · $1.20/M · 203K ctx
    34.5
    Intelligence
  6. 6z-ai logo
    glm-4.7
    ReasoningToolsJSON33.7 intel · $0.400/M · 205K ctx
    33.7
    Intelligence
  7. 7z-ai logo
    glm-4.6
    ReasoningToolsJSON23.0 intel · $0.500/M · 205K ctx
    23.0
    Intelligence
  8. 8z-ai logo
    glm-4.7-flash
    ReasoningToolsJSON22.9 intel · $0.060/M · 203K ctx
    22.9
    Intelligence
  9. 9z-ai logo
    glm-4.5
    ReasoningToolsJSON19.5 intel · $0.600/M · 131K ctx
    19.5
    Intelligence
  10. 10z-ai logo
    glm-4.5-air
    ReasoningTools16.5 intel · $0.130/M · 131K ctx
    16.5
    Intelligence
  11. 11z-ai logo
    glm-4.6v
    ReasoningToolsJSON+111.0 intel · $0.300/M · 131K ctx
    11.0
    Intelligence

Frequently asked

What is the best Z.ai model for writing?

The best Z.ai model for writing is GLM 5.2 — 51.1 intelligence with the context to hold a full long-form draft. GLM 5.1 (40.2) and GLM 5 (39.5) round out the top three.

What's a good alternative to GLM 5.2?

GLM 5.1 (40.2) is the closest alternative on this metric, followed by GLM 5 (39.5). See the full ranking above for the tradeoffs.

How many Z.ai models are there?

modelgrep tracks 12 Z.ai models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by GLM 5.2. 11 of them qualify for this ranking.

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