GLM 5.1
GLM 5.1Alternatives?
CheaperGrok 4.3medium+9%-27%$1.25 / $2.50
BetterMiMo v2.5 ProthinkingOpen+5%-95%$0.054Memory (4-bit): 452 GB → 614 GB
OpenMiniMax M3thinking+9%-50%$0.51No strict JSON+1
CheaperNemotron 3 UltrathinkingOpen+7%-43%$0.58
CheaperQwen3.5 397B A17BthinkingOpen+3%-53%$0.47Grok 4.3medium+9%-27%$1.25 / $2.50MiniMax M3thinkingOpen+9%-50%$0.51No strict JSON+1Nemotron 3 UltrathinkingOpen+7%-43%$0.58MiMo v2.5 ProthinkingOpen+5%-95%$0.054Memory (4-bit): 452 GB → 614 GBQwen3.5 397B A17BthinkingOpen+3%-53%$0.47MiMo v2.5 ProthinkingOpen+5%-95%$0.054Memory (4-bit): 452 GB → 614 GBGrok 4.3high+7%-80%$0.21Qwen3.5 397B A17BthinkingOpen+3%-53%$0.47MiniMax M3thinkingOpen+9%-50%$0.51No strict JSON+1Nemotron 3 UltrathinkingOpen+7%-43%$0.58MiniMax M3thinkingOpen+9%-50%$0.51No strict JSON+1Nemotron 3 UltrathinkingOpen+7%-43%$0.58Nemotron Cascade 2 30B A3BOpen+5%——MiMo v2.5 ProthinkingOpen+5%-95%$0.054Memory (4-bit): 452 GB → 614 GBQwen3.5 397B A17BthinkingOpen+3%-53%$0.47GLM 5.2maxOpen-4%+44%$1.47GLM 5 Turbothinking-4%—$1.20 / $4GLM 5thinkingOpen-5%—$1 / $3.20GLM 4.7thinkingOpen-11%—$0.60 / $2.20GLM 5V Turbothinking-20%—$1.20 / $4GLM 4.7 FlashthinkingOpen-20%—$0.061 / $0.40Context: 203K → 200KGLM 4.5thinkingOpen-42%—$0.60 / $2.20Context: 203K → 131KGLM 4.5 AirthinkingOpen-51%—$0.20 / $1.10Context: 203K → 131K+1All Z.ai models →Run it yourself
estimateHistory
10 versionsBenchmarks
in Writing & LanguageFAQ
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 $1.02 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?›
#80 of 334 in Chat & Knowledge, #49 of 132 in Coding, #60 of 133 in Agents & Tool Use, #29 of 195 in Writing & Language, #66 of 133 in Vision & Documents. Strongest at: Tool calling, Reasoning, Science, Knowledge, Instructions.
Is GLM 5.1 better than GLM 5?›
On IFBench (instructions), GLM 5.1 scores 76.3 vs 72.3 — higher.
How can I use GLM 5.1?›
Through the API of Alibaba, AtlasCloud, Baidu, Chutes, DeepInfra and 6 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 It has been superseded by GLM 5.2.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?›
Grok 4.3 (cheaper), MiMo v2.5 Pro (better), MiniMax M3 (open weights).