Compare Claude Sonnet 4.6 by Anthropic against GPT-5 Mini by OpenAI, tested across 53 shared challenges. Updated April 2026.
Claude Sonnet 4.6 and GPT-5 Mini are both competitive models. Claude Sonnet 4.6 costs $3/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.
Claude Sonnet 4.6 is made by anthropic while GPT-5 Mini is from openai. On pricing, Claude Sonnet 4.6 costs $3/M input tokens vs $0.25/M for GPT-5 Mini.
No community votes yet. On paper, Claude Sonnet 4.6 has the edge — bigger model tier, newer, bigger context window.
GPT-5 Mini is 7.5x cheaper per token — worth considering if cost matters.
Claude Sonnet 4.6 uses 507.4x more bold
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.

Compare Claude Sonnet 4.6 by Anthropic against GPT-5 Mini by OpenAI, tested across 53 shared challenges. Updated April 2026.
Claude Sonnet 4.6 and GPT-5 Mini are both competitive models. Claude Sonnet 4.6 costs $3/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.
Claude Sonnet 4.6 is made by anthropic while GPT-5 Mini is from openai. On pricing, Claude Sonnet 4.6 costs $3/M input tokens vs $0.25/M for GPT-5 Mini.
No community votes yet. On paper, Claude Sonnet 4.6 has the edge — bigger model tier, newer, bigger context window.
GPT-5 Mini is 7.5x cheaper per token — worth considering if cost matters.
Claude Sonnet 4.6 uses 507.4x more bold
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.

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48 fights queued
36+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy