The AI arena is free today

Open Superagent

Grok 4.7 vs Kimi-k1.5

Grok 4.7 leads the LLM Stats Score 48.5 to 17.2.

xAI · Moonshot AI · Updated for 2026

Which is better?

Grok 4.7 leads the overall LLM Stats Score 48.5 to 17.2, ranking #23 overall.

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

Choose Grok 4.7

  • overall performance matters — it scores 48.5 and ranks #23 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Kimi-k1.5

  • you are already invested in the Moonshot AI ecosystem

At a glance

The differences that matter most.

Grok 4.7
xAI
Kimi-k1.5
Moonshot AI
Core performance indexes
LLM Stats Score
48.5
#23
17.2
#221
Reasoning
37.4
#69
16.4
#218
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.00 / M
— / M
Output price
$6.00 / M
— / M
Context window
500,000
—

Individual benchmarks

23 reported for Grok 4.7 · 9 for Kimi-k1.5

No common benchmarks found

Grok 4.7 and Kimi-k1.5don'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 Grok 4.7 specifies input context (500,000 tokens).

xAI
Grok 4.7
Input500,000 tokens
Output- tokens
Moonshot AI
Kimi-k1.5
Input- tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok 4.7 and Kimi-k1.5 support multimodal inputs.

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

Grok 4.7

Text
Images
Audio
Video

Kimi-k1.5

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.

Grok 4.7

Proprietary

Closed source

Kimi-k1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Grok 4.7 was released on 2026-09-21, while Kimi-k1.5 was released on 2025-01-20.

Grok 4.7 is 20 months newer than Kimi-k1.5.

Grok 4.7

Sep 21, 2026

1 days ago

1.7yr newer
Kimi-k1.5

Jan 20, 2025

1.7 years ago

Knowledge Cutoff

When training data ends

Grok 4.7 has a documented knowledge cutoff of 2026-06-01, while Kimi-k1.5's cutoff date is not specified.

We can confirm Grok 4.7's training data extends to 2026-06-01, but cannot make a direct comparison without Kimi-k1.5's cutoff date.

Grok 4.7

Jun 2026

Kimi-k1.5

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Grok 4.7 and Kimi-k1.5 side-by-side, then vote on the output you prefer.

Grok 4.7
✓ Preferred
Kimi-k1.5
Open in Playground

FAQ

Common questions about Grok 4.7 vs Kimi-k1.5.

Which is better, Grok 4.7 or Kimi-k1.5?

Grok 4.7 leads the LLM Stats Score 48.5 to 17.2. Grok 4.7 is made by xAI and Kimi-k1.5 is made by Moonshot AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok 4.7 compare to Kimi-k1.5 in benchmarks?

Grok 4.7 scores BixBench MCQ: 88.4%, WMDP-Bio: 88.1%, WMDP-Cyber: 88.1%, WMDP-Chem: 84.9%, CyberGym: 80.3%. Kimi-k1.5 scores MATH-500: 96.2%, CLUEWSC: 91.4%, C-Eval: 88.3%, MMLU: 87.4%, IFEval: 87.2%.

What are the context window sizes for Grok 4.7 and Kimi-k1.5?

Grok 4.7 supports 500K tokens and Kimi-k1.5 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 Grok 4.7 and Kimi-k1.5?

Key differences include LLM Stats Score (48.5 vs 17.2). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.7 and Kimi-k1.5?

Grok 4.7 is developed by xAI and Kimi-k1.5 is developed by Moonshot AI.

Related comparisons