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ERNIE 5.5 Flash Preview vs o3-mini

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 20.7. ERNIE 5.5 Flash Preview is 3.9x cheaper per token.

Baidu · OpenAI · Updated for 2026

Which is better?

ERNIE 5.5 Flash Preview leads the overall LLM Stats Score 52.3 to 20.7, ranking #13 overall.

On price, ERNIE 5.5 Flash Preview is roughly 3.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

ERNIE 5.5 Flash Preview also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose ERNIE 5.5 Flash Preview

  • overall performance matters — it scores 52.3 and ranks #13 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • cost matters — it's about 3.9x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Nov 2026

Choose o3-mini

  • you want predictable pricing at $1.10/M input and $4.40/M output

At a glance

The differences that matter most.

ERNIE 5.5 Flash Preview
Baidu
o3-mini
OpenAI
Core performance indexes
LLM Stats Score
52.3
#13
20.7
#233
Reasoning
50.7
#12
19.8
#231
Coding
37.9
#20
4.7
#244
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.28 / M
$1.10 / M
Output price
$1.13 / M
$4.40 / M
Context window
1,048,576
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
ERNIE 5.5 Flash Preview
o3-mini
Tool use
32.2#8
-0.4#218
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

13 reported for ERNIE 5.5 Flash Preview · 25 for o3-mini

No common benchmarks found

ERNIE 5.5 Flash Preview and o3-minidon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

ERNIE 5.5 Flash Preview costs less

For input processing, ERNIE 5.5 Flash Preview ($0.28/1M tokens) is 3.9x cheaper than o3-mini ($1.10/1M tokens).

For output processing, ERNIE 5.5 Flash Preview ($1.13/1M tokens) is 3.9x cheaper than o3-mini ($4.40/1M tokens).

In conclusion, o3-mini is more expensive than ERNIE 5.5 Flash Preview.*

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

Lowest available price from all providers
Thu Nov 12 2026 • llm-stats.com
Baidu
ERNIE 5.5 Flash Preview
Input tokens$0.28
Output tokens$1.13
Best providerBaidu
OpenAI
o3-mini
Input tokens$1.10
Output tokens$4.40
Best providerAzure
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

ERNIE 5.5 Flash Preview accepts 1,048,576 input tokens compared to o3-mini's 200,000 tokens. ERNIE 5.5 Flash Preview can generate longer responses up to 1,048,576 tokens, while o3-mini is limited to 100,000 tokens.

Baidu
ERNIE 5.5 Flash Preview
Input1,048,576 tokens
Output1,048,576 tokens
OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
Thu Nov 12 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

ERNIE 5.5 Flash Preview

Proprietary

Closed source

o3-mini

Proprietary

Closed source

Release Timeline

When each model was launched

ERNIE 5.5 Flash Preview was released on 2026-11-11, while o3-mini was released on 2025-01-30.

ERNIE 5.5 Flash Preview is 22 months newer than o3-mini.

ERNIE 5.5 Flash Preview

Nov 11, 2026

1 days ago

1.8yr newer
o3-mini

Jan 30, 2025

1.8 years ago

Knowledge Cutoff

When training data ends

o3-mini has a documented knowledge cutoff of 2023-09-30, while ERNIE 5.5 Flash Preview's cutoff date is not specified.

We can confirm o3-mini's training data extends to 2023-09-30, but cannot make a direct comparison without ERNIE 5.5 Flash Preview's cutoff date.

ERNIE 5.5 Flash Preview

—

o3-mini

Sep 2023

Provider Availability

ERNIE 5.5 Flash Preview is available from Baidu Qianfan. o3-mini is available from Azure, OpenAI.

ERNIE 5.5 Flash Preview

baidu logo
Baidu
Input Price:Input: $0.28/1MOutput Price:Output: $1.13/1M

o3-mini

azure logo
Azure
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
openai logo
OpenAI
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against ERNIE 5.5 Flash Preview and o3-mini side-by-side, then vote on the output you prefer.

ERNIE 5.5 Flash Preview
✓ Preferred
o3-mini
Open in Playground

FAQ

Common questions about ERNIE 5.5 Flash Preview vs o3-mini.

Which is better, ERNIE 5.5 Flash Preview or o3-mini?

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 20.7. ERNIE 5.5 Flash Preview is made by Baidu and o3-mini 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 5.5 Flash Preview compare to o3-mini in benchmarks?

ERNIE 5.5 Flash Preview scores BrowseComp: 87.4%, DRACO: 84.9%, MCP Atlas: 84.6%, DeepSWE 1.1: 71.2%, OfficeQA Pro: 67.9%. o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%.

Is ERNIE 5.5 Flash Preview cheaper than o3-mini?

ERNIE 5.5 Flash Preview is 3.9x cheaper for input tokens. ERNIE 5.5 Flash Preview costs $0.28/M input and $1.13/M output via baidu. o3-mini costs $1.10/M input and $4.40/M output via azure.

What are the context window sizes for ERNIE 5.5 Flash Preview and o3-mini?

ERNIE 5.5 Flash Preview supports 1.0M tokens and o3-mini 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 5.5 Flash Preview and o3-mini?

Key differences include LLM Stats Score (52.3 vs 20.7), context window (1.0M vs 200K), input pricing ($0.28 vs $1.10/M). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 5.5 Flash Preview and o3-mini?

ERNIE 5.5 Flash Preview is developed by Baidu and o3-mini is developed by OpenAI.

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