Llama 4 Maverick vs OpenAI o4-mini

Compare Llama 4 Maverick by Meta AI against OpenAI o4-mini by OpenAI, tested across 34 shared challenges. Updated April 2026.

Which is better, Llama 4 Maverick or OpenAI o4-mini?

Llama 4 Maverick and OpenAI o4-mini are both competitive models. Llama 4 Maverick costs $1.5/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.

Key Differences Between Llama 4 Maverick and OpenAI o4-mini

Llama 4 Maverick is made by meta while OpenAI o4-mini is from openai. On pricing, Llama 4 Maverick costs $1.5/M input tokens vs $1.1/M for OpenAI o4-mini.

Our Verdict
Llama 4 Maverick
Llama 4 Maverick
OpenAI o4-mini
OpenAI o4-miniRunner-up

No community votes yet. On paper, Llama 4 Maverick has the edge — bigger model tier, bigger context window.

Too close to call
Writing DNA

Style Comparison

Similarity
84%

Llama 4 Maverick uses 370.1x more bold

Llama 4 Maverick
OpenAI o4-mini
42%Vocabulary73%
24wSentence Length15w
0.76Hedging0.18
3.7Bold0.0
6.3Lists2.1
0.00Emoji0.00
0.74Headings0.00
0.11Transitions0.02
Based on 12 + 10 text responses
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Llama 4 MaverickOpenAI o4-mini

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
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