Skip to content

GLM-5.3-Flash

Z.AIOpen weightsReasoningProvisionalReleased Aug 26, 2026Input: text, image, video
Compare with Kimi K2.6Source scores ↗OpenRouter ↗
Overall score
58.5
Rank 59 of 222 · 48.8–68.3
Context window
1M
1,000,000 tokens
Price per 1M tokens
$0.047 in · $0.12 out
Source: OpenRouter
Blended price
$0.065
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. 1Multimodal#1484.0
  2. 2Reasoning#1080.0
  3. 3Agentic & tool use#3773.6
  4. 4Knowledge#5065.1
  5. 5Math60.4
  6. 6Coding#4758.4
Higher is better. #N is the model's rank in that category, where it is eligible to be ranked.

Benchmark results (23)

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 2.184.3#19 of 68
MazeBench0#20 of 42
HLE w/ tools55.3#15 of 27
AutomationBench48.8#10 of 25
Toolathlon-Verified78.4#2 of 22
Agents' Last Exam26.3#13 of 17
Hermes Index35.0#12 of 16
Hermes Bench68.9#13 of 16

Multimodal

Design Arena Website1272#26 of 91
CharXiv89.4#9 of 42
ParseBench70.75#10 of 37
ExtractBench (LlamaIndex)(lower is better)80.75#8 of 24
OfficeQA Pro62.4#7 of 13
BabyVision53.4#6 of 8
MMVU80.5#2 of 7
Chartography (tools)78.0#5 of 5

Coding

DeepSWE63.4#32 of 50
NL2Repo56.3#7 of 31
Bug Hunt Bench17.7#22 of 23
FrontierSWE v218.1#17 of 20
OpenHarmony Bench57.3#6 of 12

Math

FrontierMath v2 (Tiers 1-3)55.789#38 of 64
FrontierMath v2 (Tier 4)17.073#38 of 51

Pricing by source

USD per 1M tokens.

SourceInputOutputCached in
List price (OpenRouter)$0.047$0.12—
OpenRouter z-ai/glm-5.3-flash$0.047$0.12$0.006

Z.AI publishes GLM-5.3-Flash under MIT for self-hosting, so BenchLM represents the open checkpoint as self-host/free-per-token before infrastructure costs. The exact glm-5.3-flash model is also available through Z.AI services and the GLM Coding Plan, but Z.AI's public per-million-token pricing table does not yet list this SKU. The hosted API must not be read as free from this self-host placeholder.

Price history

  • Oct 17, 2026: $0.032 / $0.42
  • Oct 17, 2026: $0.15 / $0.50
  • Oct 19, 2026: $0.048 / $0.16
  • Oct 20, 2026: $0.047 / $0.12
  • Oct 20, 2026: $0.047 / $0.12

Arena ratings

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

Text1471#29 · 32.9K votes
WebDev (coding)1607#29 · 18.3K votes
Vision1294#24 · 16.3K votes

Open weights

From the Hugging Face repository.

Parameters
321B
Licence
mit
Downloads (30 days)
6.5M

Speed

Measured by us through OpenRouter (median of trials).

Not measured yet.

Related models

Same family

Similar score