Model Comparison
GLM-5 vs o1Which is better in 2026?
GLM-5 significantly outperforms across most benchmarks. GLM-5 is 16.9x cheaper per token.
Verdict: GLM-5 vs o1 — which is better?
GLM-5 (by Zhipu AI) and o1 (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
GLM-5 outperforms in 1 benchmarks (SWE-Bench Verified), while o1 is better at 0 benchmarks. GLM-5 significantly outperforms across most benchmarks.
On price, GLM-5 is roughly 16.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Choose GLM-5 if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- cost matters — it's about 16.9x cheaper per token
- you want the most recent training data — it shipped Feb 2026
- you need open weights you can self-host or fine-tune
Choose o1 if…
- you want predictable pricing at $15.00/M input and $60.00/M output
Performance Benchmarks
Comparative analysis across standard metrics
GLM-5 outperforms in 1 benchmarks (SWE-Bench Verified), while o1 is better at 0 benchmarks.
GLM-5 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, GLM-5 ($1.00/1M tokens) is 15.0x cheaper than o1 ($15.00/1M tokens).
For output processing, GLM-5 ($3.20/1M tokens) is 18.8x cheaper than o1 ($60.00/1M tokens).
In conclusion, o1 is more expensive than GLM-5.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 200,000 tokens. GLM-5 can generate longer responses up to 128,000 tokens, while o1 is limited to 100,000 tokens.
License
Usage and distribution terms
GLM-5 is licensed under MIT, while o1 uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
GLM-5 was released on 2026-02-11, while o1 was released on 2024-12-17.
GLM-5 is 14 months newer than o1.
Feb 11, 2026
3 months ago
1.2yr newerDec 17, 2024
1.5 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
GLM-5 is available from FriendliAI, ZAI. o1 is available from Azure, OpenAI.
GLM-5
o1
Outputs Comparison
Key Takeaways
GLM-5
View detailsZhipu AI
o1
View detailsOpenAI
No standout differentiators in the data we have for this pair.
Detailed Comparison
FAQ
Common questions about GLM-5 vs o1.