GLM-5.1

Zhipu (GLM)

Zhipu reasoning model; strong coding, open weights (MIT).

1M+ contextHigh intelligenceHigh valueStrong reasoningMultimodal visionSelf-hostable
TextVisionTool useReasoningCodeMIT
Intelligence Index51High · 5.1/10

Specifications

VendorZhipu (GLM)
FamilyGLM
Context1M · 750k words(≈ a novella)
Max output16.4K · 12.3k words(≈ a long article)Below average
Released2026-03-27
Open sourceYes
Tool use
Benchmark details (developers: Arena Elo / academic benchmarks)
Arena Elo1418Above average

Pricing across channels

per 1M tokens, USD

ChannelTypeInputOutput
Zhipu BigModelOfficial$0.84$3.36visit
SiliconFlowAggregator$0.84$3.36visit
OpenRouter (auto)Aggregator$0.98$3.08visitAd

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