Model Comparison
ERNIE 5.0 vs o3Which is better in 2026?
ERNIE 5.0 significantly outperforms across most benchmarks.
Verdict: ERNIE 5.0 vs o3 — which is better?
ERNIE 5.0 (by Baidu) 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.
ERNIE 5.0 outperforms in 3 benchmarks (AIME 2025, GPQA, Humanity's Last Exam), while o3 is better at 0 benchmarks. ERNIE 5.0 significantly outperforms across most benchmarks.
Choose ERNIE 5.0 if…
- you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
- you want the most recent training data — it shipped Jan 2026
Choose o3 if…
- you want predictable pricing at $2.00/M input and $8.00/M output
Performance Benchmarks
Comparative analysis across standard metrics
ERNIE 5.0 outperforms in 3 benchmarks (AIME 2025, GPQA, Humanity's Last Exam), while o3 is better at 0 benchmarks.
ERNIE 5.0 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Context Window
Maximum input and output token capacity
Only o3 specifies input context (200,000 tokens). Only o3 specifies output context (100,000 tokens).
Input Capabilities
Supported data types and modalities
Both ERNIE 5.0 and o3 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
ERNIE 5.0
o3
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
ERNIE 5.0 was released on 2026-01-22, while o3 was released on 2025-04-16.
ERNIE 5.0 is 9 months newer than o3.
Jan 22, 2026
6 months ago
9mo newerApr 16, 2025
1.3 years ago
Knowledge Cutoff
When training data ends
o3 has a documented knowledge cutoff of 2024-05-31, while ERNIE 5.0'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 ERNIE 5.0's cutoff date.
—
May 2024
Outputs Comparison
Key Takeaways
o3
View detailsOpenAI
ERNIE 5.0o3Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against ERNIE 5.0 and o3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about ERNIE 5.0 vs o3.