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Inkling 2 Small vs Kimi-k1.5

Inkling 2 Small leads the LLM Stats Score 47.2 to 16.5.

Thinking Machines Lab · Moonshot AI · Updated for 2026

Which is better?

Inkling 2 Small leads the overall LLM Stats Score 47.2 to 16.5, ranking #39 overall.

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

Choose Inkling 2 Small

  • overall performance matters — it scores 47.2 and ranks #39 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Nov 2026

Choose Kimi-k1.5

  • you are already invested in the Moonshot AI ecosystem

At a glance

The differences that matter most.

Inkling 2 Small
Thinking Machines Lab
Kimi-k1.5
Moonshot AI
Core performance indexes
LLM Stats Score
47.2
#39
16.5
#259
Reasoning
47.9
#24
15.9
#256
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.30 / M
— / M
Output price
$1.00 / M
— / M
Context window
256,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Inkling 2 Small
Kimi-k1.5
Vision
29.4#45
10.7#141
Multimodal
28.9#42
14.2#116
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Inkling 2 Small · 9 for Kimi-k1.5

No common benchmarks found

Inkling 2 Small 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 Inkling 2 Small specifies input context (256,000 tokens).

Thinking Machines Lab
Inkling 2 Small
Input256,000 tokens
Output- tokens
Moonshot AI
Kimi-k1.5
Input- tokens
Output- tokens
Mon Nov 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Inkling 2 Small and Kimi-k1.5 support multimodal inputs.

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

Inkling 2 Small

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.

Inkling 2 Small

Proprietary

Closed source

Kimi-k1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Inkling 2 Small was released on 2026-11-05, while Kimi-k1.5 was released on 2025-01-20.

Inkling 2 Small is 22 months newer than Kimi-k1.5.

Inkling 2 Small

Nov 5, 2026

3 days ago

1.8yr newer
Kimi-k1.5

Jan 20, 2025

1.8 years 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

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Inkling 2 Small and Kimi-k1.5 side-by-side, then vote on the output you prefer.

Inkling 2 Small
✓ Preferred
Kimi-k1.5
Open in Playground

FAQ

Common questions about Inkling 2 Small vs Kimi-k1.5.

Which is better, Inkling 2 Small or Kimi-k1.5?

Inkling 2 Small leads the LLM Stats Score 47.2 to 16.5. Inkling 2 Small is made by Thinking Machines Lab 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 Inkling 2 Small compare to Kimi-k1.5 in benchmarks?

Inkling 2 Small scores GPQA: 93.0%, BrowseComp: 90.2%, CharXiv-R: 85.6%, MCP Atlas: 85.0%, SWE-Bench Verified: 82.2%. 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 Inkling 2 Small and Kimi-k1.5?

Inkling 2 Small supports 256K 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 Inkling 2 Small and Kimi-k1.5?

Key differences include LLM Stats Score (47.2 vs 16.5). See the full comparison above for benchmark-by-benchmark results.

Who makes Inkling 2 Small and Kimi-k1.5?

Inkling 2 Small is developed by Thinking Machines Lab and Kimi-k1.5 is developed by Moonshot AI.

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