Model Comparison

Kimi K3 vs Pixtral-12BWhich is better in 2026?

Comparing Kimi K3 and Pixtral-12B across benchmarks, pricing, and capabilities.

Verdict: Kimi K3 vs Pixtral-12B — which is better?

Kimi K3 (by Moonshot AI) and Pixtral-12B (by Mistral AI) 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, Pixtral-12B is roughly 40.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Kimi K3 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Kimi K3 if…

  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Jul 2026

Choose Pixtral-12B if…

  • cost matters — it's about 40.0x cheaper per token
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Kimi K3 and Pixtral-12Bdon'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

Pixtral-12B costs less

For input processing, Kimi K3 ($3.00/1M tokens) is 20.0x more expensive than Pixtral-12B ($0.15/1M tokens).

For output processing, Kimi K3 ($15.00/1M tokens) is 100.0x more expensive than Pixtral-12B ($0.15/1M tokens).

In conclusion, Kimi K3 is more expensive than Pixtral-12B.*

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

Lowest available price from all providers
Sat Jul 18 2026 • llm-stats.com
Moonshot AI
Kimi K3
Input tokens$3.00
Output tokens$15.00
Best providerUnknown Organization
Mistral AI
Pixtral-12B
Input tokens$0.15
Output tokens$0.15
Best providerMistral
Notice missing or incorrect data?Start an Issue→

Model Size

Parameter count comparison

2787.6B diff

Kimi K3 has 2787.6B more parameters than Pixtral-12B, making it 22480.6% larger.

Moonshot AI
Kimi K3
2.8Tparameters
Mistral AI
Pixtral-12B
12.4Bparameters
2800.0B
Kimi K3
12.4B
Pixtral-12B

Context Window

Maximum input and output token capacity

Kimi K3 accepts 1,048,576 input tokens compared to Pixtral-12B's 128,000 tokens. Kimi K3 can generate longer responses up to 1,048,576 tokens, while Pixtral-12B is limited to 8,192 tokens.

Moonshot AI
Kimi K3
Input1,048,576 tokens
Output1,048,576 tokens
Mistral AI
Pixtral-12B
Input128,000 tokens
Output8,192 tokens
Sat Jul 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Kimi K3 and Pixtral-12B support multimodal inputs.

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

Kimi K3

Text
Images
Audio
Video

Pixtral-12B

Text
Images
Audio
Video

Release Timeline

When each model was launched

Kimi K3 was released on 2026-07-16, while Pixtral-12B was released on 2024-09-17.

Kimi K3 is 22 months newer than Pixtral-12B.

Kimi K3

Jul 16, 2026

2 days ago

1.8yr newer
Pixtral-12B

Sep 17, 2024

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

Provider Availability

Kimi K3 is available from Moonshot AI. Pixtral-12B is available from Mistral AI.

Kimi K3

moonshot logo
Unknown Organization
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Pixtral-12B

mistral logo
Mistral
Input Price:Input: $0.15/1MOutput Price:Output: $0.15/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Moonshot AI
Larger context window (1,048,576 tokens)
Mistral AI
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Kimi K3 and Pixtral-12B side-by-side, then vote on the output you prefer.

Kimi K3
✓ Preferred
Pixtral-12B
Open in Playground
AI Model Comparison Table
Feature
Moonshot AI
Kimi K3
Mistral AI
Pixtral-12B

FAQ

Common questions about Kimi K3 vs Pixtral-12B.

Which is better, Kimi K3 or Pixtral-12B?

Kimi K3 (Moonshot AI) and Pixtral-12B (Mistral 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 Kimi K3 compare to Pixtral-12B in benchmarks?

Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%. Pixtral-12B scores DocVQA: 90.7%, ChartQA: 81.8%, VQAv2: 78.6%, MT-Bench: 76.8%, HumanEval: 72.0%.

Is Kimi K3 cheaper than Pixtral-12B?

Pixtral-12B is 20.0x cheaper for input tokens. Kimi K3 costs $3.00/M input and $15.00/M output via moonshot. Pixtral-12B costs $0.15/M input and $0.15/M output via mistral.

What are the context window sizes for Kimi K3 and Pixtral-12B?

Kimi K3 supports 1.0M tokens and Pixtral-12B supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Kimi K3 and Pixtral-12B?

Key differences include context window (1.0M vs 128K), input pricing ($3.00 vs $0.15/M), licensing (Unknown vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K3 and Pixtral-12B?

Kimi K3 is developed by Moonshot AI and Pixtral-12B is developed by Mistral AI.

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