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ERNIE 5.5 Flash Preview vs Kimi K2 Instruct

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 21.1. ERNIE 5.5 Flash Preview is 1.0x cheaper per token.

Baidu · Moonshot AI · Updated for 2026

Which is better?

ERNIE 5.5 Flash Preview leads the overall LLM Stats Score 52.3 to 21.1, ranking #13 overall.

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
  • 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 Kimi K2 Instruct

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

At a glance

The differences that matter most.

ERNIE 5.5 Flash Preview
Baidu
Kimi K2 Instruct
Moonshot AI
Core performance indexes
LLM Stats Score
52.3
#13
21.1
#229
Reasoning
50.7
#12
21.3
#216
Coding
37.9
#20
12.1
#185
Agents
38.5
#11
-1.9
#221
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.28 / M
$0.50 / M
Output price
$1.13 / M
$0.50 / 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
Kimi K2 Instruct
Tool use
32.2#8
5.8#186
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

13 reported for ERNIE 5.5 Flash Preview · 38 for Kimi K2 Instruct

No common benchmarks found

ERNIE 5.5 Flash Preview and Kimi K2 Instructdon'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 1.8x cheaper than Kimi K2 Instruct ($0.50/1M tokens).

For output processing, ERNIE 5.5 Flash Preview ($1.13/1M tokens) is 2.3x more expensive than Kimi K2 Instruct ($0.50/1M tokens).

In conclusion, Kimi K2 Instruct 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
Fri Nov 13 2026 • llm-stats.com
Baidu
ERNIE 5.5 Flash Preview
Input tokens$0.28
Output tokens$1.13
Best providerBaidu
Moonshot AI
Kimi K2 Instruct
Input tokens$0.50
Output tokens$0.50
Best providerFireworks
Notice missing or incorrect data?

Model Size

Parameter count comparison

720.0B diff

Kimi K2 Instruct has 720.0B more parameters than ERNIE 5.5 Flash Preview, making it 257.1% larger.

Baidu
ERNIE 5.5 Flash Preview
280.0Bparameters
Moonshot AI
Kimi K2 Instruct
1.0Tparameters
280.0B
ERNIE 5.5 Flash Preview
1000.0B
Kimi K2 Instruct

Context Window

Maximum input and output token capacity

ERNIE 5.5 Flash Preview accepts 1,048,576 input tokens compared to Kimi K2 Instruct's 200,000 tokens. ERNIE 5.5 Flash Preview can generate longer responses up to 1,048,576 tokens, while Kimi K2 Instruct is limited to 200,000 tokens.

Baidu
ERNIE 5.5 Flash Preview
Input1,048,576 tokens
Output1,048,576 tokens
Moonshot AI
Kimi K2 Instruct
Input200,000 tokens
Output200,000 tokens
Fri Nov 13 2026 • llm-stats.com

License

Usage and distribution terms

ERNIE 5.5 Flash Preview is licensed under a proprietary license, while Kimi K2 Instruct uses MIT.

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

ERNIE 5.5 Flash Preview

Proprietary

Closed source

Kimi K2 Instruct

MIT

Open weights

Release Timeline

When each model was launched

ERNIE 5.5 Flash Preview was released on 2026-11-11, while Kimi K2 Instruct was released on 2025-07-11.

ERNIE 5.5 Flash Preview is 16 months newer than Kimi K2 Instruct.

ERNIE 5.5 Flash Preview

Nov 11, 2026

1 days ago

1.3yr newer
Kimi K2 Instruct

Jul 11, 2025

1.3 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

ERNIE 5.5 Flash Preview is available from Baidu Qianfan. Kimi K2 Instruct is available from Fireworks, Novita.

ERNIE 5.5 Flash Preview

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

Kimi K2 Instruct

fireworks logo
Fireworks
Input Price:Input: $0.50/1MOutput Price:Output: $0.50/1M
novita logo
Novita
Input Price:Input: $0.57/1MOutput Price:Output: $2.30/1M
* 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 Kimi K2 Instruct side-by-side, then vote on the output you prefer.

ERNIE 5.5 Flash Preview
✓ Preferred
Kimi K2 Instruct
Open in Playground

FAQ

Common questions about ERNIE 5.5 Flash Preview vs Kimi K2 Instruct.

Which is better, ERNIE 5.5 Flash Preview or Kimi K2 Instruct?

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 21.1. ERNIE 5.5 Flash Preview is made by Baidu and Kimi K2 Instruct is made by Moonshot AI. 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 Kimi K2 Instruct 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%. Kimi K2 Instruct scores MATH-500: 97.4%, GSM8k: 97.3%, CBNSL: 95.6%, HumanEval: 93.3%, MMLU-Redux: 92.7%.

Is ERNIE 5.5 Flash Preview cheaper than Kimi K2 Instruct?

ERNIE 5.5 Flash Preview is 1.8x cheaper for input tokens. ERNIE 5.5 Flash Preview costs $0.28/M input and $1.13/M output via baidu. Kimi K2 Instruct costs $0.50/M input and $0.50/M output via fireworks.

What are the context window sizes for ERNIE 5.5 Flash Preview and Kimi K2 Instruct?

ERNIE 5.5 Flash Preview supports 1.0M tokens and Kimi K2 Instruct 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 Kimi K2 Instruct?

Key differences include LLM Stats Score (52.3 vs 21.1), context window (1.0M vs 200K), input pricing ($0.28 vs $0.50/M), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 5.5 Flash Preview and Kimi K2 Instruct?

ERNIE 5.5 Flash Preview is developed by Baidu and Kimi K2 Instruct is developed by Moonshot AI.

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