Model Comparison

Command R+ vs Grok-4Which is better in 2026?

Comparing Command R+ and Grok-4 across benchmarks, pricing, and capabilities.

Verdict: Command R+ vs Grok-4 — which is better?

Command R+ (by Cohere) and Grok-4 (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.

On price, Command R+ is roughly 13.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Grok-4 also accepts a larger context window (256,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Command R+ if…

  • cost matters — it's about 13.7x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose Grok-4 if…

  • you process long inputs — it offers a 256,000 token context window
  • you want the most recent training data — it shipped Jul 2025

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Command R+ and Grok-4don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Command R+ costs less

For input processing, Command R+ ($0.25/1M tokens) is 12.0x cheaper than Grok-4 ($3.00/1M tokens).

For output processing, Command R+ ($1.00/1M tokens) is 15.0x cheaper than Grok-4 ($15.00/1M tokens).

In conclusion, Grok-4 is more expensive than Command R+.*

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

Lowest available price from all providers
Sat Jun 27 2026 • llm-stats.com
Cohere
Command R+
Input tokens$0.25
Output tokens$1.00
Best providerCohere
xAI
Grok-4
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok-4 accepts 256,000 input tokens compared to Command R+'s 128,000 tokens. Command R+ can generate longer responses up to 128,000 tokens, while Grok-4 is limited to 8,000 tokens.

Cohere
Command R+
Input128,000 tokens
Output128,000 tokens
xAI
Grok-4
Input256,000 tokens
Output8,000 tokens
Sat Jun 27 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-4 supports multimodal inputs, whereas Command R+ does not.

Grok-4 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Command R+

Text
Images
Audio
Video

Grok-4

Text
Images
Audio
Video

License

Usage and distribution terms

Command R+ is licensed under CC BY-NC, while Grok-4 uses a proprietary license.

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

Command R+

CC BY-NC

Open weights

Grok-4

Proprietary

Closed source

Release Timeline

When each model was launched

Command R+ was released on 2024-08-30, while Grok-4 was released on 2025-07-09.

Grok-4 is 10 months newer than Command R+.

Command R+

Aug 30, 2024

1.8 years ago

Grok-4

Jul 9, 2025

11 months ago

10mo newer

Knowledge Cutoff

When training data ends

Grok-4 has a documented knowledge cutoff of 2024-12-31, while Command R+'s cutoff date is not specified.

We can confirm Grok-4's training data extends to 2024-12-31, but cannot make a direct comparison without Command R+'s cutoff date.

Command R+

—

Grok-4

Dec 2024

Provider Availability

Command R+ is available from Cohere, Bedrock. Grok-4 is available from xAI.

Command R+

cohere logo
Cohere
Input Price:Input: $0.25/1MOutput Price:Output: $1.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Grok-4

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Cohere
Less expensive input tokens
Less expensive output tokens
Has open weights
xAI
Larger context window (256,000 tokens)
Supports multimodal inputs
CohereCommand R+
xAIGrok-4
Compare in Playground

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Command R+ and Grok-4 side-by-side, then vote on the output you prefer.

Command R+
✓ Preferred
Grok-4
Open in Playground
AI Model Comparison Table
Feature
Cohere
Command R+
xAI
Grok-4

FAQ

Common questions about Command R+ vs Grok-4.

Which is better, Command R+ or Grok-4?

Command R+ (Cohere) and Grok-4 (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Command R+ compare to Grok-4 in benchmarks?

Command R+ scores HellaSwag: 88.6%, Winogrande: 85.4%, MMLU: 75.7%, ARC-C: 71.0%, GSM8k: 70.7%. Grok-4 scores AIME 2025: 91.7%, HMMT25: 90.0%, GPQA: 87.5%, LiveCodeBench: 79.0%, Humanity's Last Exam: 40.0%.

Is Command R+ cheaper than Grok-4?

Command R+ is 12.0x cheaper for input tokens. Command R+ costs $0.25/M input and $1.00/M output via cohere. Grok-4 costs $3.00/M input and $15.00/M output via xai.

What are the context window sizes for Command R+ and Grok-4?

Command R+ supports 128K tokens and Grok-4 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Command R+ and Grok-4?

Key differences include context window (128K vs 256K), input pricing ($0.25 vs $3.00/M), multimodal support (no vs yes), licensing (CC BY-NC vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Command R+ and Grok-4?

Command R+ is developed by Cohere and Grok-4 is developed by xAI.

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