Model Comparison

GLM-5 vs ChatGPT-4o LatestWhich is better in 2026?

Comparing GLM-5 and ChatGPT-4o Latest across benchmarks, pricing, and capabilities.

Verdict: GLM-5 vs ChatGPT-4o Latest — which is better?

GLM-5 (by Zhipu AI) and ChatGPT-4o Latest (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-5 is roughly 2.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GLM-5 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GLM-5 if…

  • cost matters — it's about 2.8x cheaper per token
  • you process long inputs — it offers a 200,000 token context window
  • you want the most recent training data — it shipped Feb 2026
  • you need open weights you can self-host or fine-tune

Choose ChatGPT-4o Latest if…

  • you want predictable pricing at $2.50/M input and $10.00/M output
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GLM-5 and ChatGPT-4o Latest don'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-5 costs less

For input processing, GLM-5 ($1.00/1M tokens) is 2.5x cheaper than ChatGPT-4o Latest ($2.50/1M tokens).

For output processing, GLM-5 ($3.20/1M tokens) is 3.1x cheaper than ChatGPT-4o Latest ($10.00/1M tokens).

In conclusion, ChatGPT-4o Latest is more expensive than GLM-5.*

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

Lowest available price from all providers
Sun Jun 07 2026 • llm-stats.com
Zhipu AI
GLM-5
Input tokens$1.00
Output tokens$3.20
Best providerFriendliAI
OpenAI
ChatGPT-4o Latest
Input tokens$2.50
Output tokens$10.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GLM-5 accepts 200,000 input tokens compared to ChatGPT-4o Latest's 128,000 tokens. GLM-5 can generate longer responses up to 128,000 tokens, while ChatGPT-4o Latest is limited to 16,384 tokens.

Zhipu AI
GLM-5
Input200,000 tokens
Output128,000 tokens
OpenAI
ChatGPT-4o Latest
Input128,000 tokens
Output16,384 tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

ChatGPT-4o Latest supports multimodal inputs, whereas GLM-5 does not.

ChatGPT-4o Latest can handle both text and other forms of data like images, making it suitable for multimodal applications.

GLM-5

Text
Images
Audio
Video

ChatGPT-4o Latest

Text
Images
Audio
Video

License

Usage and distribution terms

GLM-5 is licensed under MIT, while ChatGPT-4o Latest uses a proprietary license.

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

GLM-5

MIT

Open weights

ChatGPT-4o Latest

Proprietary

Closed source

Release Timeline

When each model was launched

GLM-5 was released on 2026-02-11, while ChatGPT-4o Latest was released on 2024-05-13.

GLM-5 is 21 months newer than ChatGPT-4o Latest.

GLM-5

Feb 11, 2026

3 months ago

1.8yr newer
ChatGPT-4o Latest

May 13, 2024

2.1 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GLM-5 is available from FriendliAI, ZAI. ChatGPT-4o Latest is available from OpenAI.

GLM-5

friendli logo
FriendliAI
Input Price:Input: $1.00/1MOutput Price:Output: $3.20/1M
z logo
Unknown Organization
Input Price:Input: $1.00/1MOutput Price:Output: $3.20/1M

ChatGPT-4o Latest

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Zhipu AI
Larger context window (200,000 tokens)
Less expensive input tokens
Less expensive output tokens
Has open weights
OpenAI
Supports multimodal inputs

Detailed Comparison

AI Model Comparison Table
Feature
Zhipu AI
GLM-5
OpenAI
ChatGPT-4o Latest

FAQ

Common questions about GLM-5 vs ChatGPT-4o Latest.

Which is better, GLM-5 or ChatGPT-4o Latest?

GLM-5 (Zhipu AI) and ChatGPT-4o Latest (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-5 compare to ChatGPT-4o Latest in benchmarks?

GLM-5 scores t2-bench: 89.7%, SWE-Bench Verified: 77.8%, BrowseComp: 75.9%, MCP Atlas: 67.8%, Terminal-Bench 2.0: 56.2%. ChatGPT-4o Latest scores GPQA: 84.0%.

Is GLM-5 cheaper than ChatGPT-4o Latest?

GLM-5 is 2.5x cheaper for input tokens. GLM-5 costs $1.00/M input and $3.20/M output via friendli. ChatGPT-4o Latest costs $2.50/M input and $10.00/M output via openai.

What are the context window sizes for GLM-5 and ChatGPT-4o Latest?

GLM-5 supports 200K tokens and ChatGPT-4o Latest supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GLM-5 and ChatGPT-4o Latest?

Key differences include context window (200K vs 128K), input pricing ($1.00 vs $2.50/M), multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-5 and ChatGPT-4o Latest?

GLM-5 is developed by Zhipu AI and ChatGPT-4o Latest is developed by OpenAI.

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