Model Comparison

GLM-4.5V vs o3Which is better in 2026?

Comparing GLM-4.5V and o3 across benchmarks, pricing, and capabilities.

Verdict: GLM-4.5V vs o3 — which is better?

GLM-4.5V (by Zhipu AI) and o3 (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.

On price, GLM-4.5V is roughly 3.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o3 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GLM-4.5V if…

  • cost matters — it's about 3.6x cheaper per token
  • you want the most recent training data — it shipped Aug 2025
  • you need open weights you can self-host or fine-tune

Choose o3 if…

  • you process long inputs — it offers a 200,000 token context window

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GLM-4.5V and o3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GLM-4.5V costs less

For input processing, GLM-4.5V ($0.55/1M tokens) is 3.6x cheaper than o3 ($2.00/1M tokens).

For output processing, GLM-4.5V ($2.19/1M tokens) is 3.7x cheaper than o3 ($8.00/1M tokens).

In conclusion, o3 is more expensive than GLM-4.5V.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Jul 27 2026 • llm-stats.com
Zhipu AI
GLM-4.5V
Input tokens$0.55
Output tokens$2.19
Best providerFireworks
OpenAI
o3
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o3 accepts 200,000 input tokens compared to GLM-4.5V's 131,072 tokens. GLM-4.5V can generate longer responses up to 131,072 tokens, while o3 is limited to 100,000 tokens.

Zhipu AI
GLM-4.5V
Input131,072 tokens
Output131,072 tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Mon Jul 27 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GLM-4.5V and o3 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GLM-4.5V

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

GLM-4.5V is licensed under MIT, while o3 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

GLM-4.5V

MIT

Open weights

o3

Proprietary

Closed source

Release Timeline

When each model was launched

GLM-4.5V was released on 2025-08-11, while o3 was released on 2025-04-16.

GLM-4.5V is 4 months newer than o3.

GLM-4.5V

Aug 11, 2025

11 months ago

3mo newer
o3

Apr 16, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

o3 has a documented knowledge cutoff of 2024-05-31, while GLM-4.5V's cutoff date is not specified.

We can confirm o3's training data extends to 2024-05-31, but cannot make a direct comparison without GLM-4.5V's cutoff date.

GLM-4.5V

—

o3

May 2024

Provider Availability

GLM-4.5V is available from Fireworks, Novita. o3 is available from OpenAI.

GLM-4.5V

fireworks logo
Fireworks
Input Price:Input: $0.55/1MOutput Price:Output: $2.19/1M
novita logo
Novita
Input Price:Input: $0.60/1MOutput Price:Output: $2.20/1M

o3

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Zhipu AI
Less expensive input tokens
Less expensive output tokens
Has open weights
OpenAI
Larger context window (200,000 tokens)
Zhipu AIGLM-4.5V
OpenAIo3
Compare in Playground

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GLM-4.5V and o3 side-by-side, then vote on the output you prefer.

GLM-4.5V
✓ Preferred
o3
Open in Playground
AI Model Comparison Table
Feature
Zhipu AI
GLM-4.5V
OpenAI
o3

FAQ

Common questions about GLM-4.5V vs o3.

Which is better, GLM-4.5V or o3?

GLM-4.5V (Zhipu AI) and o3 (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GLM-4.5V compare to o3 in benchmarks?

o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.

Is GLM-4.5V cheaper than o3?

GLM-4.5V is 3.6x cheaper for input tokens. GLM-4.5V costs $0.55/M input and $2.19/M output via fireworks. o3 costs $2.00/M input and $8.00/M output via openai.

What are the context window sizes for GLM-4.5V and o3?

GLM-4.5V supports 131K tokens and o3 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GLM-4.5V and o3?

Key differences include context window (131K vs 200K), input pricing ($0.55 vs $2.00/M), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-4.5V and o3?

GLM-4.5V is developed by Zhipu AI and o3 is developed by OpenAI.

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