Updated

Claude Sonnet 5 vs GPT-6 Sol

GPT-6 Sol does not have enough reviewed code to rank yet.

Claude Sonnet 5 and GPT-6 Sol compared on relative bug rate, by coding agent, bug type, and language, and on price and usage.
Claude Sonnet 5GPT-6 Sol
Bug rate
Relative bug rate2.10Launch week
Details
ProviderAnthropicOpenAI
ReleasedJun 30, 2026Sep 22, 2026
List price$2 input / $10 output per 1M tokens$2 input / $10 output per 1M tokens

1.00 = average · lower is better

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Questions and answers

Which has fewer bugs, Claude Sonnet 5 or GPT-6 Sol?
GPT-6 Sol does not have enough reviewed code to rank yet.
Which is cheaper, Claude Sonnet 5 or GPT-6 Sol?
Both list at $2 input / $10 output per 1M tokens.