Claude 3 Haiku
Nothing here. The model returned empty. We stared at it for a while.
Claude 3 Haiku vs o3 Mini
Compare Claude 3 Haiku by Anthropic against o3 Mini by OpenAI, context windows of 200K vs 64K, tested across 53 shared challenges. Updated April 2026.
Which is better, Claude 3 Haiku or o3 Mini?
Claude 3 Haiku and o3 Mini are both competitive models. Claude 3 Haiku costs $0.25/M input tokens vs $1.1/M for o3 Mini. Context windows: 200K vs 64K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3 Haiku and o3 Mini
Claude 3 Haiku is made by anthropic while o3 Mini is from openai. Claude 3 Haiku has a 200K token context window compared to o3 Mini's 64K. On pricing, Claude 3 Haiku costs $0.25/M input tokens vs $1.1/M for o3 Mini.
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Claude 3 Haikuvso3 Mini
48 fights queued
Why Claude 3 Haiku?
3.6x cheaper overall$0.25/M in · $1.25/M out
3.1x more context200K
Why o3 Mini?
Leads 2 of 2 benchmarks
Stronger on MATH97.3% vs 69.4%
10 months newerDec 2024
Favorites
Claude 3 Haikuo3 Mini
12 / 48
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
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2 / 48
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
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3 / 48
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
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4 / 48
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
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5 / 48
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
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6 / 48
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
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Sponsored
7 / 48
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
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8 / 48
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
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9 / 48
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
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10 / 48
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
Vote
11 / 48
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
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12 / 48
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Vote
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Our Verdict
Claude 3 Haiku
o3 MiniRunner-up
No community votes yet. On paper, Claude 3 Haiku has the edge — bigger model tier, bigger context window.
Claude 3 Haiku is 3.5x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
92%
o3 Mini uses 46.7x more headings
Claude 3 Haiku
o3 Mini
50%Vocabulary65%
22wSentence Length17w
0.71Hedging0.74
0.3Bold3.9
5.9Lists1.7
0.00Emoji0.00
0.00Headings0.47
0.08Transitions0.38
Based on 13 + 12 text responses
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
Model Similarity Index
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
Devstral M / S
95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ
Common questions
