Kimi K3.1 Pro 2026: Benchmarks, Pricing & Full Specs

Name: Kimi K3.1 Pro
Brand: Kimi
Price: 2 USD

Specifications

AA Intelligence Index

55.1

Artificial Analysis · 4.3 · 10/27/2026, 3:00:24 PM

Context Window

—

Input Price/1M

$2.00

#319 of 445

Output Price/1M

$10.00

Parameters

—

Speed

41 tok/s

#152 of 160

Latency (TTFT)

3.0s

Cost per Task

$2.1145

USD / task · lower is better · Artificial Analysis · 4.3 · 10/27/2026, 3:00:24 PM

Benchmarks

Artificial Analysis metrics for Kimi K3.1 Pro. Higher is better for capability indexes; lower is better for cost per task.

Cost

Benchmark	Score	Maximum	Methodology	Source / version / date
AA Cost Per Task	2.1	100.0	Artificial Analysis official API	Artificial Analysis · 4.3 · 10/27/2026

overall

Benchmark	Score	Maximum	Methodology	Source / version / date
AA Intelligence Index	55.1	100.0	Artificial Analysis official API	Artificial Analysis · 4.3 · 10/27/2026

Information

Release date: October 23, 2026
Tool Calling: ❌ Not supported
Vision: ❌ Not supported
Audio: ❌ Not supported

Full Analysis: Kimi K3.1 Pro

What is Kimi K3.1 Pro?

Kimi K3.1 Pro is an AI model developed by Kimi, classified as a text model. It focuses on text processing and natural language generation. As a proprietary model, it is available via Kimi's cloud API.

Pricing & Costs in 2026

Kimi K3.1 Pro is usage-based, priced at $2/1M input tokens and $10/1M output tokens. For context: 1 million tokens is approximately 750,000 words, or about 10 average-length books. The mid-range pricing balances quality and cost for most professional applications.

Benchmarks & Performance

Kimi K3.1 Pro was evaluated on 2 different benchmarks, covering categories like Cost, overall. Results show moderate performance across available evaluations.

It's important to note that benchmarks measure specific aspects and don't capture the full user experience. Factors like instruction adherence, behavior in long conversations, and real-world task quality vary significantly between models and aren't always reflected in standard scores.

Recommended Use Cases

Kimi K3.1 Pro specializes in text, offering advanced capabilities for creating and processing text content.

Comparison with Alternatives

In the 2026 AI model ecosystem, Kimi K3.1 Pro competes directly with similarly capable models. Kimi competes in this segment against OpenAI, Anthropic, Google, and Meta. The choice between models depends on the specific use case, budget, latency requirements, and need for features like multimodality and tool calling.

For a detailed side-by-side comparison, use our comparison tool or check the overall model ranking.