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Claude 3 Opus vs Grok-1.5V

Claude 3 Opus leads the LLM Stats Score 10.1 to -0.6.

Anthropic · xAI · Updated for 2026

Which is better?

Claude 3 Opus leads the overall LLM Stats Score 10.1 to -0.6, ranking #255 overall.

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

Choose Claude 3 Opus

  • overall performance matters — it scores 10.1 and ranks #255 on LLM Stats

Choose Grok-1.5V

  • you want the most recent training data — it shipped Apr 2024

At a glance

The differences that matter most.

Claude 3 Opus
Anthropic
Grok-1.5V
xAI
Core performance indexes
LLM Stats Score
10.1
#255
-0.6
#319
Reasoning
10.0
#248
0.1
#305
Cost, coverage & limits
Benchmark wins
—
—
Input price
$15.00 / M
— / M
Output price
$75.00 / M
— / M
Context window
200,000
—

Individual benchmarks

11 reported for Claude 3 Opus · 7 for Grok-1.5V

No common benchmarks found

Claude 3 Opus and Grok-1.5Vdon'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 Claude 3 Opus specifies input context (200,000 tokens). Only Claude 3 Opus specifies output context (200,000 tokens).

Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
xAI
Grok-1.5V
Input- tokens
Output- tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude 3 Opus and Grok-1.5V support multimodal inputs.

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

Claude 3 Opus

Text
Images
Audio
Video

Grok-1.5V

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.

Claude 3 Opus

Proprietary

Closed source

Grok-1.5V

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Grok-1.5V was released on 2024-04-12.

Grok-1.5V is 1 month newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.5 years ago

Grok-1.5V

Apr 12, 2024

2.4 years ago

1mo 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?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude 3 Opus and Grok-1.5V side-by-side, then vote on the output you prefer.

Claude 3 Opus
✓ Preferred
Grok-1.5V
Open in Playground

FAQ

Common questions about Claude 3 Opus vs Grok-1.5V.

Which is better, Claude 3 Opus or Grok-1.5V?

Claude 3 Opus leads the LLM Stats Score 10.1 to -0.6. Claude 3 Opus is made by Anthropic and Grok-1.5V is made by xAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude 3 Opus compare to Grok-1.5V in benchmarks?

Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%. Grok-1.5V scores AI2D: 88.3%, DocVQA: 85.6%, TextVQA: 78.1%, ChartQA: 76.1%, RealWorldQA: 68.7%.

What are the context window sizes for Claude 3 Opus and Grok-1.5V?

Claude 3 Opus supports 200K tokens and Grok-1.5V 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 Claude 3 Opus and Grok-1.5V?

Key differences include LLM Stats Score (10.1 vs -0.6). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Opus and Grok-1.5V?

Claude 3 Opus is developed by Anthropic and Grok-1.5V is developed by xAI.

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