Compare Claude Sonnet 4.6 by Anthropic against o3 Mini by OpenAI, context windows of 1.0M vs 64K, tested across 53 shared challenges. Updated April 2026.
Claude Sonnet 4.6 and o3 Mini are both competitive models. Claude Sonnet 4.6 costs $3/M input tokens vs $1.1/M for o3 Mini. Context windows: 1000K vs 64K tokens. Compare their real outputs side by side below.
Claude Sonnet 4.6 is made by anthropic while o3 Mini is from openai. Claude Sonnet 4.6 has a 1000K token context window compared to o3 Mini's 64K. On pricing, Claude Sonnet 4.6 costs $3/M input tokens vs $1.1/M for o3 Mini.
48 fights queued
Tests an AI's ability to make educated estimates based on technical knowledge
Tests an AI's ability to understand game rules and strategy
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Tests an AI's randomness and creativity
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
Tests an AI's ability to simulate personalities and predict future trends
Tests an AI's humor and understanding of current events
Tests an AI's ability to write in distinct character voices
Tests an AI's ability to generate a complete, working landing page
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
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No community votes yet. On paper, Claude Sonnet 4.6 has the edge — bigger model tier, newer, bigger context window.
o3 Mini is 3.4x cheaper per token — worth considering if cost matters.
Claude Sonnet 4.6 uses 19.1x more emoji
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
