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GLM 5.1 benchmarks, ranks and price

Where Artificial Analysis, LiveBench, LMArena and Berkeley BFCL place GLM 5.1, what it costs through OpenRouter and Vercel AI Gateway, and the models either side of it on the consensus.

Updated Oct 12, 2026Full leaderboardSources and method

Read Oct 12, 2026

#21of 122

on the LLM leaderboard, with a consensus score of 69 across 2 leaderboards.

Source: Artificial Analysis, LiveBench, LMArena and Berkeley BFCL, combined by Rank.ai.

By leaderboard

Where each leaderboard places GLM 5.1

Artificial Analysis

#32of 111

Score 26.1. Best run: z-ai/glm-5.1.

Intelligence Index: a composite of reasoning, knowledge, maths and coding evaluations.

LiveBench

Not measured by LiveBench.

Contamination-limited questions refreshed each release: reasoning, maths, coding, data analysis, language.

LMArena

#19of 112

Score 1470. Best run: glm-5.1.

Blind head-to-head human votes, style controlled.

Berkeley BFCL

Not measured by Berkeley BFCL.

Function calling and tool use, single turn to multi turn and web search.

Price and context

$1.48

OpenRouter: $0.97 in, $3.04 out. Vercel AI Gateway: $1.40 in, $4.40 out Context window 205K tokens.

Nearby

The models either side of GLM 5.1

  1. #18Gemini 3 Flash Preview70
  2. #19Grok 4.2069
  3. #20Claude Sonnet 4.569
  4. #21GLM 5.169
  5. #22GLM 568
  6. #23GPT-5.6 Terra68
  7. #24GLM 5.267

Questions about GLM 5.1

How good is GLM 5.1?
GLM 5.1 ranks #21 of 122 models on the Rank.ai LLM leaderboard, with a consensus score of 69 out of 100 across 2 leaderboards.
Is GLM 5.1 better than Claude Sonnet 4.5?
Not on the consensus: Claude Sonnet 4.5 scores 69 to GLM 5.1's 69. Compare them source by source below, since the leaderboards test different things.
Is GLM 5.1 better than GLM 5?
On the consensus, yes: 69 to 68.
How much does GLM 5.1 cost?
$0.97 per million input tokens and $3.04 per million output tokens on OpenRouter, the cheaper listing we read. Blended at three input tokens to one output, that is $1.48 per million.
Is GLM 5.1 good for coding?
It scores 55.8 on the Artificial Analysis Coding Index, placing it #26 for coding among the models on this leaderboard.

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Enter your website. In about two minutes, Rank.ai asks ChatGPT, Claude and Gemini 12 questions your customers ask and grades how often they name you.

  • Your grade out of 100How often AI names you, cites your site, and how high it ranks you.
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  • The pages AI readsThe sources behind each answer.
  • Three fixesWhat to fix first, with a brief for the first article.