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ERNIE 5.0 vs o3

ERNIE 5.0 and o3 are closely matched at 33.4 and 31.1 on the LLM Stats Score.

Baidu · OpenAI · Updated for 2026

Which is better?

ERNIE 5.0 and o3 are closely matched on the overall LLM Stats Score at 33.4 and 31.1.

In the 3 individual benchmarks reported for both models, ERNIE 5.0 wins 3; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose ERNIE 5.0

  • you value its reported benchmark strengths — it wins 3 of 3 exact shared results
  • you want the most recent training data — it shipped Jan 2026

Choose o3

  • you want predictable pricing at $2.00/M input and $8.00/M output

At a glance

The differences that matter most.

Core performance indexes
33.4
#105
31.1
#119
33.0
#104
30.7
#121
Cost, coverage & limits
Benchmark wins
3 of 3
0 of 3
Input price
— / M
$2.00 / M
Output price
— / M
$8.00 / M
Context window
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
ERNIE 5.0
o3
31.0#72
25.5#108
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

5 reported for ERNIE 5.0 · 22 for o3

3 shared

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.

Wed Sep 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only o3 specifies input context (200,000 tokens). Only o3 specifies output context (100,000 tokens).

Baidu
ERNIE 5.0
Input- tokens
Output- tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Wed Sep 23 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

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

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

ERNIE 5.0

Proprietary

Closed source

o3

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.

ERNIE 5.0

Jan 22, 2026

8 months ago

9mo newer
o3

Apr 16, 2025

1.4 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.

ERNIE 5.0

o3

May 2024

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against ERNIE 5.0 and o3 side-by-side, then vote on the output you prefer.

ERNIE 5.0
✓ Preferred
o3
Open in Playground

FAQ

Common questions about ERNIE 5.0 vs o3.

Which is better, ERNIE 5.0 or o3?

ERNIE 5.0 and o3 are closely matched on the LLM Stats Score at 33.4 and 31.1. ERNIE 5.0 is made by Baidu and o3 is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does ERNIE 5.0 compare to o3 in benchmarks?

ERNIE 5.0 scores AIME 2025: 87.0%, MMLU-Pro: 87.0%, GPQA: 85.0%, SimpleQA: 75.0%, Humanity's Last Exam: 39.0%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.

What are the context window sizes for ERNIE 5.0 and o3?

ERNIE 5.0 supports an unknown number of 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 ERNIE 5.0 and o3?

Key differences include LLM Stats Score (33.4 vs 31.1). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 5.0 and o3?

ERNIE 5.0 is developed by Baidu and o3 is developed by OpenAI.