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Z.ai: GLM 5.1

Z-AI Developer Architecture Profile

OpenRouter ↗HuggingFace ↗
Intelligence (ELO)1420Chatbot Arena Verified
Max Context202,752Tokens
API Cost / 1M$4.20Blended Prompt + Completion

Model Capabilities

  • Coding & Logic
  • Fictional
GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

Granular Pricing Matrix

Input Tokens (Prompt)$1.00 / 1M
Output Tokens (Completion)$3.20 / 1M

Pricing data via OpenRouter. Sync: 4/7/2026

Evaluate Competitors

VS Engine MatchupZ.ai: GLM 5.1 vs StepFun: Step 3.5 Flash (free)VS Engine MatchupZ.ai: GLM 5.1 vs Arcee AI: Maestro ReasoningVS Engine MatchupZ.ai: GLM 5.1 vs Mancer: Weaver (alpha)VS Engine MatchupZ.ai: GLM 5.1 vs Mistral: Ministral 3 14B 2512VS Engine MatchupZ.ai: GLM 5.1 vs Anthropic: Claude Haiku 4.5VS Engine MatchupZ.ai: GLM 5.1 vs Qwen: Qwen3 Coder Plus