Model Comparison

ERNIE 4.5 vs Grok 4.5Which is better in 2026?

Grok 4.5 significantly outperforms across most benchmarks. ERNIE 4.5 is 2.3x cheaper per token.

Verdict: ERNIE 4.5 vs Grok 4.5 — which is better?

ERNIE 4.5 (by Baidu) and Grok 4.5 (by xAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

ERNIE 4.5 outperforms in 0 benchmarks, while Grok 4.5 is better at 1 benchmark (GPQA). Grok 4.5 significantly outperforms across most benchmarks.

On price, ERNIE 4.5 is roughly 2.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Grok 4.5 also accepts a larger context window (500,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose ERNIE 4.5 if…

  • cost matters — it's about 2.3x cheaper per token

Choose Grok 4.5 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 500,000 token context window
  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

ERNIE 4.5 outperforms in 0 benchmarks, while Grok 4.5 is better at 1 benchmark (GPQA).

Grok 4.5 significantly outperforms across most benchmarks.

Mon Jul 27 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

ERNIE 4.5 costs less

For input processing, ERNIE 4.5 ($0.40/1M tokens) is 5.0x cheaper than Grok 4.5 ($2.00/1M tokens).

For output processing, ERNIE 4.5 ($4.00/1M tokens) is 1.5x cheaper than Grok 4.5 ($6.00/1M tokens).

In conclusion, Grok 4.5 is more expensive than ERNIE 4.5.*

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

Lowest available price from all providers
Mon Jul 27 2026 • llm-stats.com
Baidu
ERNIE 4.5
Input tokens$0.40
Output tokens$4.00
Best providerNovita
xAI
Grok 4.5
Input tokens$2.00
Output tokens$6.00
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok 4.5 accepts 500,000 input tokens compared to ERNIE 4.5's 128,000 tokens. Only ERNIE 4.5 specifies output context (65,536 tokens).

Baidu
ERNIE 4.5
Input128,000 tokens
Output65,536 tokens
xAI
Grok 4.5
Input500,000 tokens
Output- tokens
Mon Jul 27 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok 4.5 supports multimodal inputs, whereas ERNIE 4.5 does not.

Grok 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

ERNIE 4.5

Text
Images
Audio
Video

Grok 4.5

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 4.5

Proprietary

Closed source

Grok 4.5

Proprietary

Closed source

Release Timeline

When each model was launched

ERNIE 4.5 was released on 2025-06-25, while Grok 4.5 was released on 2026-07-16.

Grok 4.5 is 13 months newer than ERNIE 4.5.

ERNIE 4.5

Jun 25, 2025

1.1 years ago

Grok 4.5

Jul 16, 2026

1 weeks ago

1.1yr newer

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while ERNIE 4.5's cutoff date is not specified.

We can confirm Grok 4.5's training data extends to 2026-02-01, but cannot make a direct comparison without ERNIE 4.5's cutoff date.

ERNIE 4.5

—

Grok 4.5

Feb 2026

Provider Availability

ERNIE 4.5 is available from Novita. Grok 4.5 is available from xAI.

ERNIE 4.5

novita logo
Novita
Input Price:Input: $0.40/1MOutput Price:Output: $4.00/1M

Grok 4.5

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Baidu
Less expensive input tokens
Less expensive output tokens
xAI
Larger context window (500,000 tokens)
Supports multimodal inputs
Higher GPQA score (93.0% vs 74.0%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against ERNIE 4.5 and Grok 4.5 side-by-side, then vote on the output you prefer.

ERNIE 4.5
✓ Preferred
Grok 4.5
Open in Playground
AI Model Comparison Table
Feature
Baidu
ERNIE 4.5
xAI
Grok 4.5

FAQ

Common questions about ERNIE 4.5 vs Grok 4.5.

Which is better, ERNIE 4.5 or Grok 4.5?

Grok 4.5 significantly outperforms across most benchmarks. ERNIE 4.5 is made by Baidu and Grok 4.5 is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does ERNIE 4.5 compare to Grok 4.5 in benchmarks?

ERNIE 4.5 scores GPQA: 74.0%, ARC-E: 60.7%, PIQA: 55.2%, Winogrande: 51.3%, CLUEWSC: 48.6%. Grok 4.5 scores GPQA: 93.0%, Terminal-Bench 2.1: 83.3%, Artificial Analysis Coding Agent Index v1.1: 76.0%, SWE-Bench Pro: 64.7%, AA-Omniscience Index: 63.0%.

Is ERNIE 4.5 cheaper than Grok 4.5?

ERNIE 4.5 is 5.0x cheaper for input tokens. ERNIE 4.5 costs $0.40/M input and $4.00/M output via novita. Grok 4.5 costs $2.00/M input and $6.00/M output via xai.

What are the context window sizes for ERNIE 4.5 and Grok 4.5?

ERNIE 4.5 supports 128K tokens and Grok 4.5 supports 500K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between ERNIE 4.5 and Grok 4.5?

Key differences include context window (128K vs 500K), input pricing ($0.40 vs $2.00/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 4.5 and Grok 4.5?

ERNIE 4.5 is developed by Baidu and Grok 4.5 is developed by xAI.

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