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Claude 3 Haiku vs Grok-4.1 Thinking

Grok-4.1 Thinking leads the LLM Stats Score 16.0 to -1.5. Claude 3 Haiku is 12.0x cheaper per token.

Anthropic · xAI · Updated for 2026

Which is better?

Grok-4.1 Thinking leads the overall LLM Stats Score 16.0 to -1.5, ranking #226 overall.

On price, Claude 3 Haiku is roughly 12.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Grok-4.1 Thinking also accepts a larger context window (256,000 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose Claude 3 Haiku

  • cost matters — it's about 12.0x cheaper per token

Choose Grok-4.1 Thinking

  • overall performance matters — it scores 16.0 and ranks #226 on LLM Stats
  • you process long inputs — it offers a 256,000 token context window
  • you want the most recent training data — it shipped Nov 2025

At a glance

The differences that matter most.

Claude 3 Haiku
Anthropic
Grok-4.1 Thinking
xAI
Core performance indexes
LLM Stats Score
-1.5
#336
16.0
#226
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.25 / M
$3.00 / M
Output price
$1.25 / M
$15.00 / M
Context window
200,000
256,000

Individual benchmarks

10 reported for Claude 3 Haiku · 11 for Grok-4.1 Thinking

No common benchmarks found

Claude 3 Haiku and Grok-4.1 Thinkingdon'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

Claude 3 Haiku costs less

For input processing, Claude 3 Haiku ($0.25/1M tokens) is 12.0x cheaper than Grok-4.1 Thinking ($3.00/1M tokens).

For output processing, Claude 3 Haiku ($1.25/1M tokens) is 12.0x cheaper than Grok-4.1 Thinking ($15.00/1M tokens).

In conclusion, Grok-4.1 Thinking is more expensive than Claude 3 Haiku.*

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

Lowest available price from all providers
Mon Sep 21 2026 • llm-stats.com
Anthropic
Claude 3 Haiku
Input tokens$0.25
Output tokens$1.25
Best providerAnthropic
xAI
Grok-4.1 Thinking
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok-4.1 Thinking accepts 256,000 input tokens compared to Claude 3 Haiku's 200,000 tokens. Claude 3 Haiku can generate longer responses up to 200,000 tokens, while Grok-4.1 Thinking is limited to 8,000 tokens.

Anthropic
Claude 3 Haiku
Input200,000 tokens
Output200,000 tokens
xAI
Grok-4.1 Thinking
Input256,000 tokens
Output8,000 tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude 3 Haiku and Grok-4.1 Thinking support multimodal inputs.

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

Claude 3 Haiku

Text
Images
Audio
Video

Grok-4.1 Thinking

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.

Claude 3 Haiku

Proprietary

Closed source

Grok-4.1 Thinking

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Haiku was released on 2024-03-13, while Grok-4.1 Thinking was released on 2025-11-17.

Grok-4.1 Thinking is 20 months newer than Claude 3 Haiku.

Claude 3 Haiku

Mar 13, 2024

2.5 years ago

Grok-4.1 Thinking

Nov 17, 2025

10 months ago

1.7yr 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. Grok-4.1 Thinking is available from xAI.

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

Grok-4.1 Thinking

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude 3 Haiku and Grok-4.1 Thinking side-by-side, then vote on the output you prefer.

Claude 3 Haiku
✓ Preferred
Grok-4.1 Thinking
Open in Playground

FAQ

Common questions about Claude 3 Haiku vs Grok-4.1 Thinking.

Which is better, Claude 3 Haiku or Grok-4.1 Thinking?

Grok-4.1 Thinking leads the LLM Stats Score 16.0 to -1.5. Claude 3 Haiku is made by Anthropic and Grok-4.1 Thinking is made by xAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude 3 Haiku compare to Grok-4.1 Thinking in benchmarks?

Claude 3 Haiku scores ARC-C: 89.2%, GSM8k: 88.9%, HellaSwag: 85.9%, DROP: 78.4%, HumanEval: 75.9%. Grok-4.1 Thinking scores Creative Writing v3: 86.1%, WMDP: 84.0%, EQ-Bench: 79.3%, ProtocolQA: 79.0%, LMArena Text Leaderboard: 74.2%.

Is Claude 3 Haiku cheaper than Grok-4.1 Thinking?

Claude 3 Haiku is 12.0x cheaper for input tokens. Claude 3 Haiku costs $0.25/M input and $1.25/M output via anthropic. Grok-4.1 Thinking costs $3.00/M input and $15.00/M output via xai.

What are the context window sizes for Claude 3 Haiku and Grok-4.1 Thinking?

Claude 3 Haiku supports 200K tokens and Grok-4.1 Thinking supports 256K 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 Grok-4.1 Thinking?

Key differences include LLM Stats Score (-1.5 vs 16.0), context window (200K vs 256K), input pricing ($0.25 vs $3.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Haiku and Grok-4.1 Thinking?

Claude 3 Haiku is developed by Anthropic and Grok-4.1 Thinking is developed by xAI.

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