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ERNIE 5.5 Flash Preview vs Grok-1.5

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to -3.2.

Baidu · xAI · Updated for 2026

Which is better?

ERNIE 5.5 Flash Preview leads the overall LLM Stats Score 52.3 to -3.2, ranking #13 overall.

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 want the most recent training data — it shipped Nov 2026

Choose Grok-1.5

  • you are already invested in the xAI ecosystem

At a glance

The differences that matter most.

ERNIE 5.5 Flash Preview
Baidu
Grok-1.5
xAI
Core performance indexes
LLM Stats Score
52.3
#13
-3.2
#387
Reasoning
50.7
#12
-2.8
#378
Coding
37.9
#20
-1.0
#288
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.28 / M
— / M
Output price
$1.13 / M
— / M
Context window
1,048,576
—

Individual benchmarks

13 reported for ERNIE 5.5 Flash Preview · 9 for Grok-1.5

No common benchmarks found

ERNIE 5.5 Flash Preview and Grok-1.5don'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

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).

Baidu
ERNIE 5.5 Flash Preview
Input1,048,576 tokens
Output1,048,576 tokens
xAI
Grok-1.5
Input- tokens
Output- 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

Grok-1.5

Proprietary

Closed source

Release Timeline

When each model was launched

ERNIE 5.5 Flash Preview was released on 2026-11-11, while Grok-1.5 was released on 2024-03-28.

ERNIE 5.5 Flash Preview is 32 months newer than Grok-1.5.

ERNIE 5.5 Flash Preview

Nov 11, 2026

1 days ago

2.6yr newer
Grok-1.5

Mar 28, 2024

2.6 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

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against ERNIE 5.5 Flash Preview and Grok-1.5 side-by-side, then vote on the output you prefer.

ERNIE 5.5 Flash Preview
✓ Preferred
Grok-1.5
Open in Playground

FAQ

Common questions about ERNIE 5.5 Flash Preview vs Grok-1.5.

Which is better, ERNIE 5.5 Flash Preview or Grok-1.5?

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to -3.2. ERNIE 5.5 Flash Preview is made by Baidu and Grok-1.5 is made by xAI. 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 Grok-1.5 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%. Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%.

What are the context window sizes for ERNIE 5.5 Flash Preview and Grok-1.5?

ERNIE 5.5 Flash Preview supports 1.0M tokens and Grok-1.5 supports an unknown number of 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 Grok-1.5?

Key differences include LLM Stats Score (52.3 vs -3.2). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 5.5 Flash Preview and Grok-1.5?

ERNIE 5.5 Flash Preview is developed by Baidu and Grok-1.5 is developed by xAI.

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