Compare Claude Sonnet 4.5 by Anthropic against OpenAI Codex Mini by OpenAI, context windows of 200K vs 200K, tested across 10 shared challenges.
No community votes yet. On paper, Claude Sonnet 4.5 has the edge — bigger model tier, newer.
OpenAI Codex Mini is cheaper on both — 2.0× input, 2.5× output
Compare Claude Sonnet 4.5 by Anthropic against OpenAI Codex Mini by OpenAI, context windows of 200K vs 200K, tested across 10 shared challenges.
No community votes yet. On paper, Claude Sonnet 4.5 has the edge — bigger model tier, newer.
OpenAI Codex Mini is cheaper on both — 2.0× input, 2.5× output