GLM-5.3-Flash vs o1
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
GLM-5.3-Flash by Zhipu AI wins on 6 of 6 benchmarks against o1 by OpenAI, which leads on 0. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
Coding: In coding, GLM-5.3-Flash scores 71.5 on AA Coding Index compared to o1's 39.7.
Reasoning: In reasoning, GLM-5.3-Flash scores 85.8% on GPQA Diamond compared to o1's 77.3%.
Context: In context, GLM-5.3-Flash scores 1.3M on Context Length compared to o1's 200K.
Pricing Comparison
GLM-5.3-Flash costs $0.15/1M input tokens and $0.50/1M output tokens, while o1 costs $15.0/1M input and $60.0/1M output. GLM-5.3-Flash is the more affordable option for API usage.
Verdict
GLM-5.3-Flash leads across the board in affordability, making it the stronger overall choice in this comparison.
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GLM-5.3-Flash vs o1 — FAQ
Which is better, GLM-5.3-Flash or o1?
GLM-5.3-Flash wins on more benchmarks overall (6 vs 0). However, the best choice depends on your specific needs — each model excels in different areas.
How does GLM-5.3-Flash compare to o1 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is GLM-5.3-Flash cheaper than o1?
Yes, GLM-5.3-Flash is cheaper. GLM-5.3-Flash costs $0.15/1M input and $0.50/1M output tokens. o1 costs $15.0/1M input and $60.0/1M output tokens.
Which is faster, GLM-5.3-Flash or o1?
Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.
What benchmarks does the GLM-5.3-Flash vs o1 comparison cover?
This comparison covers 6 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, AA Coding Index, Cached Input Cost. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.