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Grok-1.5V vs Particle-1

Particle-1 leads the LLM Stats Score 31.9 to -1.3.

xAI · Particle AI · Updated for 2026

Which is better?

Particle-1 leads the overall LLM Stats Score 31.9 to -1.3, ranking #133 overall.

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

Choose Grok-1.5V

  • you are already invested in the xAI ecosystem

Choose Particle-1

  • overall performance matters — it scores 31.9 and ranks #133 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Grok-1.5V
xAI
Particle-1
Particle AI
Core performance indexes
LLM Stats Score
-1.3
#369
31.9
#133
Reasoning
-0.5
#355
31.2
#135
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.25 / M
Output price
— / M
$1.00 / M
Context window
—
1,048,576

Individual benchmarks

7 reported for Grok-1.5V · 3 for Particle-1

No common benchmarks found

Grok-1.5V and Particle-1don'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 Particle-1 specifies input context (1,048,576 tokens). Only Particle-1 specifies output context (131,072 tokens).

xAI
Grok-1.5V
Input- tokens
Output- tokens
Particle AI
Particle-1
Input1,048,576 tokens
Output131,072 tokens
Fri Oct 30 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok-1.5V and Particle-1 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Grok-1.5V

Text
Images
Audio
Video

Particle-1

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.

Grok-1.5V

Proprietary

Closed source

Particle-1

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-1.5V was released on 2024-04-12, while Particle-1 was released on 2026-10-28.

Particle-1 is 31 months newer than Grok-1.5V.

Grok-1.5V

Apr 12, 2024

2.5 years ago

Particle-1

Oct 28, 2026

-3 days ago

2.5yr 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 Grok-1.5V and Particle-1 side-by-side, then vote on the output you prefer.

Grok-1.5V
✓ Preferred
Particle-1
Open in Playground

FAQ

Common questions about Grok-1.5V vs Particle-1.

Which is better, Grok-1.5V or Particle-1?

Particle-1 leads the LLM Stats Score 31.9 to -1.3. Grok-1.5V is made by xAI and Particle-1 is made by Particle AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok-1.5V compare to Particle-1 in benchmarks?

Grok-1.5V scores AI2D: 88.3%, DocVQA: 85.6%, TextVQA: 78.1%, ChartQA: 76.1%, RealWorldQA: 68.7%. Particle-1 scores GPQA: 90.4%, BabyVision: 89.2%, MMLU: 86.1%.

What are the context window sizes for Grok-1.5V and Particle-1?

Grok-1.5V supports an unknown number of tokens and Particle-1 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 Grok-1.5V and Particle-1?

Key differences include LLM Stats Score (-1.3 vs 31.9). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-1.5V and Particle-1?

Grok-1.5V is developed by xAI and Particle-1 is developed by Particle AI.

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