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DeepSeek R1 Zero vs ERNIE 5.5 Flash Preview

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 15.4.

DeepSeek · Baidu · Updated for 2026

Which is better?

ERNIE 5.5 Flash Preview leads the overall LLM Stats Score 52.3 to 15.4, ranking #13 overall.

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

Choose DeepSeek R1 Zero

  • you need open weights you can self-host or fine-tune

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
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

DeepSeek R1 Zero
DeepSeek
ERNIE 5.5 Flash Preview
Baidu
Core performance indexes
LLM Stats Score
15.4
#272
52.3
#13
Reasoning
15.7
#262
50.7
#12
Coding
4.2
#250
37.9
#20
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.28 / M
Output price
— / M
$1.13 / M
Context window
—
1,048,576

Individual benchmarks

4 reported for DeepSeek R1 Zero · 13 for ERNIE 5.5 Flash Preview

No common benchmarks found

DeepSeek R1 Zero and ERNIE 5.5 Flash Previewdon'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

Model Size

Parameter count comparison

391.0B diff

DeepSeek R1 Zero has 391.0B more parameters than ERNIE 5.5 Flash Preview, making it 139.6% larger.

DeepSeek
DeepSeek R1 Zero
671.0Bparameters
Baidu
ERNIE 5.5 Flash Preview
280.0Bparameters
671.0B
DeepSeek R1 Zero
280.0B
ERNIE 5.5 Flash Preview

Context Window

Maximum input and output token capacity

Only ERNIE 5.5 Flash Preview specifies input context (1,048,576 tokens). Only ERNIE 5.5 Flash Preview specifies output context (1,048,576 tokens).

DeepSeek
DeepSeek R1 Zero
Input- tokens
Output- tokens
Baidu
ERNIE 5.5 Flash Preview
Input1,048,576 tokens
Output1,048,576 tokens
Thu Nov 12 2026 • llm-stats.com

License

Usage and distribution terms

DeepSeek R1 Zero is licensed under MIT, while ERNIE 5.5 Flash Preview uses a proprietary license.

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

DeepSeek R1 Zero

MIT

Open weights

ERNIE 5.5 Flash Preview

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek R1 Zero was released on 2025-01-20, while ERNIE 5.5 Flash Preview was released on 2026-11-11.

ERNIE 5.5 Flash Preview is 22 months newer than DeepSeek R1 Zero.

DeepSeek R1 Zero

Jan 20, 2025

1.8 years ago

ERNIE 5.5 Flash Preview

Nov 11, 2026

1 days ago

1.8yr newer

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

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against DeepSeek R1 Zero and ERNIE 5.5 Flash Preview side-by-side, then vote on the output you prefer.

DeepSeek R1 Zero
✓ Preferred
ERNIE 5.5 Flash Preview
Open in Playground

FAQ

Common questions about DeepSeek R1 Zero vs ERNIE 5.5 Flash Preview.

Which is better, DeepSeek R1 Zero or ERNIE 5.5 Flash Preview?

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 15.4. DeepSeek R1 Zero is made by DeepSeek and ERNIE 5.5 Flash Preview is made by Baidu. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does DeepSeek R1 Zero compare to ERNIE 5.5 Flash Preview in benchmarks?

DeepSeek R1 Zero scores MATH-500: 95.9%, AIME 2024: 86.7%, GPQA: 73.3%, LiveCodeBench: 50.0%. 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%.

What are the context window sizes for DeepSeek R1 Zero and ERNIE 5.5 Flash Preview?

DeepSeek R1 Zero supports an unknown number of tokens and ERNIE 5.5 Flash Preview supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek R1 Zero and ERNIE 5.5 Flash Preview?

Key differences include LLM Stats Score (15.4 vs 52.3), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek R1 Zero and ERNIE 5.5 Flash Preview?

DeepSeek R1 Zero is developed by DeepSeek and ERNIE 5.5 Flash Preview is developed by Baidu.

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