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GLM-5.3

Z.AIOpen weightsReasoningVerifiedReleased Aug 14, 2026Input: text
Overall score
68.0
Rank 25 of 222 · 63.5–72.4
Context window
1M
1,000,000 tokens
Price per 1M tokens
$0.079 in · $1.40 out
Source: OpenRouter
Blended price
$0.41
3:1 input:output tokens
Output speed
—
Not measured yet

Category scores

Scores per capability area with the model's rank among ranked models in that category.

  1. 1Reasoning#1179.8
  2. 2Agentic & tool use#874.5
  3. 3Math71.5
  4. 4Knowledge#4464.8
  5. 5Coding#2958.6
Higher is better. #N is the model's rank in that category, where it is eligible to be ranked.

Benchmark results (26)

As reported in system cards, papers and public evaluations. Position compares this model with every other model reporting the same benchmark.

Agentic & tool use

Terminal-Bench 2.188.2#8 of 68
MazeBench0#20 of 42
HLE w/ tools62.5#5 of 27
CyberGym84.5#7 of 25
AutomationBench48.2#11 of 25
Toolathlon-Verified73.0#13 of 22
Agents' Last Exam28.5#11 of 17
Hermes Index39.2#7 of 16
Hermes Bench71.8#7 of 16
ExploitGym15.0#8 of 14

Coding

DeepSWE66.9#27 of 50
NL2Repo58.0#6 of 31
Bug Hunt Bench19.0#19 of 23
FrontierSWE v230.2#10 of 20
ProgramBench19.0#14 of 15
VulcanBench v378.3#12 of 14
OpenHarmony Bench60.8#1 of 12
FrontierSWE78.1#2 of 3
PostTrain Bench39.8#1 of 3

Math

FrontierMath v2 (Tiers 1-3)68.772#24 of 64
FrontierMath v2 (Tier 4)29.268#27 of 51

Multimodal

Design Arena Website1295#17 of 91

Instruction following

Gray Swan IPI (15 attempts)(lower is better)31.5#10 of 12

Pricing by source

USD per 1M tokens.

SourceInputOutputCached in
List price (OpenRouter)$0.079$1.40—
OpenRouter z-ai/glm-5.3$0.079$1.40$0.078

Z.AI publishes the GLM-5.3 FP8 checkpoint under the custom GLM-5.3 License for self-hosting and does not publish a distinct first-party hosted per-token rate for this exact checkpoint. We represent the open-weight row as self-host/free-per-token before infrastructure costs. The hosted Z.AI route and Coding Plan must not be read as free from this self-host placeholder.

Price history

  • Oct 17, 2026: $0.079 / $4.80
  • Oct 19, 2026: $0.079 / $1.40

Arena ratings

Human-preference ratings from LMArena. Best-rated variant shown.

Text(max)1472#27 · 22.5K votes
WebDev (coding)(Max)1621#25 · 9.8K votes

Open weights

From the Hugging Face repository.

Parameters
753B
Licence
other
Downloads (30 days)
1.9M

Speed

Measured by us through OpenRouter (median of trials).

Not measured yet.

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