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GLM 5.3 Flash

z-ai/glm-5.3-flash
  • Z.ai
  • Family · GLM 5 Flash
  • Released 26 Aug 2026
  • Text · Image · Video → Text
  • Reasoning · adjustable
  • Tools · JSON · Vision
Spec & list price
Context1M
Max output128K
Input / 1M$0.03
Output / 1M$0.093.2× input
Scores · standing
Intelligence41.8#29/489
LiveBench62.1#21/32
Coding71.5#21/196
Usage
Tokens / day1.4T▲ 11% 7d
Usage rank#3
Requests / day53.2M
Tool calls / req0.21
Per request · 30 days
Avg input18.8K1.3× median
Avg output7611.1× median
Cache hit81%1.2× median
Reasoning share32%0.6× median
Tool-call failures1.3%0.7× median

Benchmarks

bar = share of the top score · Benchmark data: Artificial Analysis
GPQA Diamond#29 of 445
91.2%
Terminal-Bench 2.1#15 of 182
84.3%
τ-Bench Banking#7 of 154
47.2%
Long-context reasoning#49 of 393
80.0%
Coding index#21 of 196
71.5
SciCode#50 of 160
51.6%
Intelligence index#29 of 489
41.8
Humanity's Last Exam#51 of 465
39.9%
Speed · median across 40 providers, latest day
Output speed#112/33486 tok/s1.3× faster than median
Fastest provider168 tok/sbest of 40 providers
First token#1240.78 s1.3× quicker than median
First answer token#7730 sthinking included

Best value in its score band

Value
Intelligence Index
39404142$0.02$0.05$0.1$0.2GLM 5.3 Flash
Blended price per 1M tokens (log)
LiveBench suites
Browser59.8
Coding80.6
Data Analysis76.4
Design77.2
Long Agentic19.0
Reasoning77.6
Research70.1

▲ Strongest: Coding, Reasoning. ▼ Weakest: Long Agentic (19).

Technical details

Reasoning
on · max
Tokenizer
Other
License
MIT
Moderation
none
Downloads · likes
6.3M · 3.0K
Reasoning effort
  • max · default
  • high
  • low
Request parameters 21
  • tools
  • tool_choice
  • parallel_tool_calls
  • response_format
  • structured_outputs
  • reasoning
  • reasoning_effort
  • include_reasoning
  • temperature
  • top_p
+11 more
  • top_k
  • min_p
  • max_tokens
  • stop
  • seed
  • frequency_penalty
  • logit_bias
  • logprobs
  • presence_penalty
  • repetition_penalty
  • top_logprobs

Same family

GLM 5 Flash

Alternatives

other vendors · similar capability

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