GLM 5.1
GLM 5.1Alternatives?
CheaperGPT-5.4 Minixhigh+39%-22%$0.37OpenGLM 5.2max×2.4same$1.28
CheaperKimi K2.6unstatedOpen+36%-20%$0.95 / $4Memory (4-bit): 452 GB → 616 GB
CheaperMiniMax M3unstatedOpen+17%-76%$0.30 / $1.20No strict JSON+1
CheaperMiMo v2.5 ProunstatedOpen+11%-75%$0.43 / $0.87Memory (4-bit): 452 GB → 614 GBGPT-5.4 Minixhigh+39%-22%$0.37Kimi K2.6unstatedOpen+36%-20%$0.95 / $4Memory (4-bit): 452 GB → 616 GBMiniMax M3unstatedOpen+17%-76%$0.30 / $1.20No strict JSON+1MiMo v2.5 ProunstatedOpen+11%-75%$0.43 / $0.87Memory (4-bit): 452 GB → 614 GB
Grok Build 0.1unstated-25%-42%$1 / $2GPT-5.4 Minixhigh+39%-22%$0.37GPT-5.5medium×2.7+423%$0.77Prompts with >272K input tokensGLM 5.2maxOpen×2.4same$1.28
Claude Opus 4.8max×3.3+365%$4.08GPT-5.4xhigh×3.2+162%$2.50 / $15GLM 5.2maxOpen×2.4same$1.28Kimi K2.6unstatedOpen+36%-20%$0.95 / $4Memory (4-bit): 452 GB → 616 GBMiniMax M3unstatedOpen+17%-76%$0.30 / $1.20No strict JSON+1MiMo v2.5 ProunstatedOpen+11%-75%$0.43 / $0.87Memory (4-bit): 452 GB → 614 GB
DeepSeek V4 Pro 0813unstatedOpen-57%-8%$1.32 / $3.96Memory (4-bit): 452 GB → 990 GB+5GLM 5.2maxOpen×2.4—$1.28GLM 5.3 FlashmaxOpenn/a—$0.28Defaults to max · Self-hosted+4GLM 5.3lowOpenn/a—$0.85Reasoning cannot be disabled+3GLM 5V Turbothinkingn/a—$1.20 / $4GLM 5 Turbothinkingn/a—$1.20 / $4GLM 5thinkingOpenn/a—$1 / $3.20GLM 4.7 FlashthinkingOpenn/a—$0.061 / $0.40Context: 203K → 200KGLM 4.7thinkingOpenn/a—$0.60 / $2.20All Z.ai models →Run it yourself
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10 versionsBenchmarks
in CodingFAQ
How much does GLM 5.1 cost?›
$1.40 per 1M input tokens and $4.40 per 1M output tokens; cached input $0.26 per 1M; cheapest via lab-qwen at $0.82 / $3.30. A typical benchmark task costs about $0.75 at default effort.
Is GLM 5.1 free to use?›
There is no free API; the cheapest paid price is $0.82 per 1M input tokens. The weights are open, so you can run it yourself.
How good is GLM 5.1, and what is it best at?›
#82 of 336 in Chat & Knowledge, #51 of 134 in Coding, #62 of 135 in Agents & Tool Use, #23 of 197 in Writing & Language, #68 of 135 in Vision & Documents. Strongest at: Tool calling, Reasoning, Science, Knowledge, Instructions.
Is GLM 5.1 better than Qwen3.7 Max?›
On DeepSWE 1, GLM 5.1 scores 17.5 vs 17.7 — about the same.
How can I use GLM 5.1?›
Through the API of Alibaba, AtlasCloud, Chutes, DeepInfra, Friendli and 5 more.
What is the context window of GLM 5.1?›
203K tokens, with up to 131K output tokens.
When was GLM 5.1 released? Is there a newer version?›
Released 2026-04-07. It has been superseded by GLM 5.2.
Is GLM 5.1 open source?›
Yes, the weights are open (MIT licence).
Can I run GLM 5.1 locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Can GLM 5.1 read images?›
No, it accepts text only.
What is GLM 5.1?›
GLM 5.1 is an open-weights language model from Z.ai, released Apr 2026, the successor to GLM 5.
What are the best alternatives to GLM 5.1?›
GPT-5.4 Mini (cheaper), GLM 5.2 (open weights).