Model Comparison

Claude 3 Haiku vs Kimi K2 InstructWhich is better in 2026?

Kimi K2 Instruct significantly outperforms across most benchmarks. Claude 3 Haiku and Kimi K2 Instruct cost the same.

Verdict: Claude 3 Haiku vs Kimi K2 Instruct — which is better?

Claude 3 Haiku (by Anthropic) and Kimi K2 Instruct (by Moonshot 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.

Claude 3 Haiku outperforms in 0 benchmarks, while Kimi K2 Instruct is better at 4 benchmarks (GPQA, GSM8k, HumanEval, MMLU). Kimi K2 Instruct significantly outperforms across most benchmarks.

Choose Claude 3 Haiku if…

  • you want predictable pricing at $0.25/M input and $1.25/M output

Choose Kimi K2 Instruct if…

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks
  • you want the most recent training data — it shipped Jul 2025
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude 3 Haiku outperforms in 0 benchmarks, while Kimi K2 Instruct is better at 4 benchmarks (GPQA, GSM8k, HumanEval, MMLU).

Kimi K2 Instruct significantly outperforms across most benchmarks.

Tue Jun 09 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

For input processing, Claude 3 Haiku ($0.25/1M tokens) is 2.0x cheaper than Kimi K2 Instruct ($0.50/1M tokens).

For output processing, Claude 3 Haiku ($1.25/1M tokens) is 2.5x more expensive than Kimi K2 Instruct ($0.50/1M tokens).

In conclusion, Claude 3 Haiku and Kimi K2 Instruct cost the same.*

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

Lowest available price from all providers
Tue Jun 09 2026 • llm-stats.com
Anthropic
Claude 3 Haiku
Input tokens$0.25
Output tokens$1.25
Best providerAnthropic
Moonshot AI
Kimi K2 Instruct
Input tokens$0.50
Output tokens$0.50
Best providerFireworks
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 200,000 tokens. Both models can generate responses up to 200,000 tokens.

Anthropic
Claude 3 Haiku
Input200,000 tokens
Output200,000 tokens
Moonshot AI
Kimi K2 Instruct
Input200,000 tokens
Output200,000 tokens
Tue Jun 09 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Haiku supports multimodal inputs, whereas Kimi K2 Instruct does not.

Claude 3 Haiku can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3 Haiku

Text
Images
Audio
Video

Kimi K2 Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3 Haiku is licensed under a proprietary license, while Kimi K2 Instruct uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Claude 3 Haiku

Proprietary

Closed source

Kimi K2 Instruct

MIT

Open weights

Release Timeline

When each model was launched

Claude 3 Haiku was released on 2024-03-13, while Kimi K2 Instruct was released on 2025-07-11.

Kimi K2 Instruct is 16 months newer than Claude 3 Haiku.

Claude 3 Haiku

Mar 13, 2024

2.2 years ago

Kimi K2 Instruct

Jul 11, 2025

11 months ago

1.3yr newer

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

Claude 3 Haiku is available from Anthropic, Bedrock, Google. Kimi K2 Instruct is available from Fireworks, Novita.

Claude 3 Haiku

anthropic logo
Anthropic
Input Price:Input: $0.25/1MOutput Price:Output: $1.25/1M
bedrock logo
AWS Bedrock
Input Price:Input: $0.25/1MOutput Price:Output: $1.25/1M
google logo
Google
Input Price:Input: $0.25/1MOutput Price:Output: $1.25/1M

Kimi K2 Instruct

fireworks logo
Fireworks
Input Price:Input: $0.50/1MOutput Price:Output: $0.50/1M
novita logo
Novita
Input Price:Input: $0.57/1MOutput Price:Output: $2.30/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Supports multimodal inputs
Less expensive input tokens
Moonshot AI
Less expensive output tokens
Has open weights
Higher GPQA score (75.1% vs 33.3%)
Higher GSM8k score (97.3% vs 88.9%)
Higher HumanEval score (93.3% vs 75.9%)
Higher MMLU score (89.5% vs 75.2%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Haiku
Moonshot AI
Kimi K2 Instruct

FAQ

Common questions about Claude 3 Haiku vs Kimi K2 Instruct.

Which is better, Claude 3 Haiku or Kimi K2 Instruct?

Kimi K2 Instruct significantly outperforms across most benchmarks. Claude 3 Haiku is made by Anthropic and Kimi K2 Instruct is made by Moonshot AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude 3 Haiku compare to Kimi K2 Instruct in benchmarks?

Claude 3 Haiku scores ARC-C: 89.2%, GSM8k: 88.9%, HellaSwag: 85.9%, DROP: 78.4%, HumanEval: 75.9%. Kimi K2 Instruct scores MATH-500: 97.4%, GSM8k: 97.3%, CBNSL: 95.6%, HumanEval: 93.3%, MMLU-Redux: 92.7%.

Is Claude 3 Haiku cheaper than Kimi K2 Instruct?

Claude 3 Haiku is 2.0x cheaper for input tokens. Claude 3 Haiku costs $0.25/M input and $1.25/M output via anthropic. Kimi K2 Instruct costs $0.50/M input and $0.50/M output via fireworks.

What are the context window sizes for Claude 3 Haiku and Kimi K2 Instruct?

Claude 3 Haiku supports 200K tokens and Kimi K2 Instruct supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude 3 Haiku and Kimi K2 Instruct?

Key differences include input pricing ($0.25 vs $0.50/M), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Haiku and Kimi K2 Instruct?

Claude 3 Haiku is developed by Anthropic and Kimi K2 Instruct is developed by Moonshot AI.

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