Compare · ModelsLive · 2 picked · head to head
GLM 5.3 Flash vs GPT-5 Mini
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GLM 5.3 Flash wins on 7/9 benchmarks
GLM 5.3 Flash wins 7 of 9 shared benchmarks. Leads in reasoning · math.
Category leads
reasoning·GLM 5.3 Flashknowledge·GPT-5 Minimath·GLM 5.3 Flashgeneral·GPT-5 Mini
Hype vs Reality
Attention vs performance
GLM 5.3 Flash
#151 by perf·#3 by attention
GPT-5 Mini
#120 by perf·#9 by attention
Best value
GLM 5.3 Flash
17.8x better value than GPT-5 Mini
GLM 5.3 Flash
813.2 pts/$
$0.06/M
GPT-5 Mini
45.8 pts/$
$1.13/M
Vendor risk
Who is behind the model
z-ai
private · undisclosed
OpenAI
$840.0B·Tier 1
Head to head
9 benchmarks · 2 models
GLM 5.3 FlashGPT-5 Mini
ARC-AGI
GLM 5.3 Flash leads by +36.7
ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization.
GLM 5.3 Flash
91.0
GPT-5 Mini
54.3
ARC-AGI-2
GLM 5.3 Flash leads by +61.4
ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data.
GLM 5.3 Flash
65.8
GPT-5 Mini
4.4
Chess Puzzles
GPT-5 Mini leads by +3.2
Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities.
GLM 5.3 Flash
16.9
GPT-5 Mini
20.0
FrontierMath-Tier-4-v2-Private
GLM 5.3 Flash leads by +4.9
GLM 5.3 Flash
17.1
GPT-5 Mini
12.2
FrontierMath-Tiers-1-3-v2-Private
GLM 5.3 Flash leads by +9.6
GLM 5.3 Flash
58.7
GPT-5 Mini
49.1
GPQA diamond
GLM 5.3 Flash leads by +21.0
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GLM 5.3 Flash
90.5
GPT-5 Mini
69.4
Mystery Game Puzzles
GPT-5 Mini leads by +0.9
GLM 5.3 Flash
0.0
GPT-5 Mini
0.9
OTIS Mock AIME 2024-2025
GLM 5.3 Flash leads by +7.2
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
GLM 5.3 Flash
93.9
GPT-5 Mini
86.7
Proofbench
GLM 5.3 Flash leads by +12.0
GLM 5.3 Flash
21.0
GPT-5 Mini
9.0
Full benchmark table
| Benchmark | GLM 5.3 Flash | GPT-5 Mini |
|---|---|---|
ARC-AGI ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization. | 91.0 | 54.3 |
ARC-AGI-2 ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data. | 65.8 | 4.4 |
Chess Puzzles Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities. | 16.9 | 20.0 |
FrontierMath-Tier-4-v2-Private | 17.1 | 12.2 |
FrontierMath-Tiers-1-3-v2-Private | 58.7 | 49.1 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 90.5 | 69.4 |
Mystery Game Puzzles | 0.0 | 0.9 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 93.9 | 86.7 |
Proofbench | 21.0 | 9.0 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.04 | $0.08 | 1.0M tokens (~524 books) | $0.50 | |
| $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 |