The AI arena is free today

Open Superagent

GPT-6 Rosalind vs Kimi K3.1 Pro

Comparing GPT-6 Rosalind and Kimi K3.1 Pro across benchmarks, pricing, and capabilities.

OpenAI · Moonshot AI · Updated for 2026

Which is better?

GPT-6 Rosalind and Kimi K3.1 Pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

On price, Kimi K3.1 Pro is roughly 7.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

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

Choose GPT-6 Rosalind

  • you want the most recent training data — it shipped Oct 2026

Choose Kimi K3.1 Pro

  • cost matters — it's about 7.5x cheaper per token

At a glance

The differences that matter most.

GPT-6 Rosalind
OpenAI
Kimi K3.1 Pro
Moonshot AI
Benchmark wins
—
—
Input price
$15.00 / M
$2.00 / M
Output price
$75.00 / M
$10.00 / M
Context window
—
1,048,576

Individual benchmarks

0 reported for GPT-6 Rosalind · 30 for Kimi K3.1 Pro

No common benchmarks found

GPT-6 Rosalind and Kimi K3.1 Prodon'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

Pricing Analysis

Price comparison per million tokens

Kimi K3.1 Pro costs less

For input processing, GPT-6 Rosalind ($15.00/1M tokens) is 7.5x more expensive than Kimi K3.1 Pro ($2.00/1M tokens).

For output processing, GPT-6 Rosalind ($75.00/1M tokens) is 7.5x more expensive than Kimi K3.1 Pro ($10.00/1M tokens).

In conclusion, GPT-6 Rosalind is more expensive than Kimi K3.1 Pro.*

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

Lowest available price from all providers
Mon Nov 02 2026 • llm-stats.com
OpenAI
GPT-6 Rosalind
Input tokens$15.00
Output tokens$75.00
Best providerOpenAI
Moonshot AI
Kimi K3.1 Pro
Input tokens$2.00
Output tokens$10.00
Best providerUnknown Organization
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Only Kimi K3.1 Pro specifies input context (1,048,576 tokens). Only Kimi K3.1 Pro specifies output context (1,048,576 tokens).

OpenAI
GPT-6 Rosalind
Input- tokens
Output- tokens
Moonshot AI
Kimi K3.1 Pro
Input1,048,576 tokens
Output1,048,576 tokens
Mon Nov 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-6 Rosalind and Kimi K3.1 Pro support multimodal inputs.

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

GPT-6 Rosalind

Text
Images
Audio
Video

Kimi K3.1 Pro

Text
Images
Audio
Video

Release Timeline

When each model was launched

GPT-6 Rosalind was released on 2026-10-30, while Kimi K3.1 Pro was released on 2026-10-23.

GPT-6 Rosalind is 0 month newer than Kimi K3.1 Pro.

GPT-6 Rosalind

Oct 30, 2026

2 days ago

1w newer
Kimi K3.1 Pro

Oct 23, 2026

1 weeks ago

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

Provider Availability

GPT-6 Rosalind is available from OpenAI. Kimi K3.1 Pro is available from Moonshot AI.

GPT-6 Rosalind

openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M

Kimi K3.1 Pro

moonshot logo
Unknown Organization
Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-6 Rosalind and Kimi K3.1 Pro side-by-side, then vote on the output you prefer.

GPT-6 Rosalind
✓ Preferred
Kimi K3.1 Pro
Open in Playground

FAQ

Common questions about GPT-6 Rosalind vs Kimi K3.1 Pro.

Which is better, GPT-6 Rosalind or Kimi K3.1 Pro?

GPT-6 Rosalind (OpenAI) and Kimi K3.1 Pro (Moonshot AI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GPT-6 Rosalind compare to Kimi K3.1 Pro in benchmarks?

Kimi K3.1 Pro scores BabyVision: 95.4%, GPQA: 94.2%, BenchCAD (with Python tool): 92.7%, BrowseComp: 92.1%, Chartography: 90.2%.

Is GPT-6 Rosalind cheaper than Kimi K3.1 Pro?

Kimi K3.1 Pro is 7.5x cheaper for input tokens. GPT-6 Rosalind costs $15.00/M input and $75.00/M output via openai. Kimi K3.1 Pro costs $2.00/M input and $10.00/M output via moonshot.

What are the context window sizes for GPT-6 Rosalind and Kimi K3.1 Pro?

GPT-6 Rosalind supports an unknown number of tokens and Kimi K3.1 Pro 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 GPT-6 Rosalind and Kimi K3.1 Pro?

Key differences include input pricing ($15.00 vs $2.00/M), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-6 Rosalind and Kimi K3.1 Pro?

GPT-6 Rosalind is developed by OpenAI and Kimi K3.1 Pro is developed by Moonshot AI.

Related comparisons