Which is cheaper, Claude Opus 5.5 or GPT-6 Sol?

Claude Opus 5.5 lists at $4 input / $20 output per 1M tokens; GPT-6 Sol lists at $2 input / $10 output per 1M tokens. GPT-6 Sol has the lower list price.

Updated Sep 26, 2026

Claude Opus 5.5 vs GPT-6 Sol

Neither Claude Opus 5.5 nor GPT-6 Sol has enough reviewed code to rank yet.

Claude Opus 5.5 and GPT-6 Sol compared on relative bug rate, by coding agent, bug type, and language, and on price and usage.
Bug rate
	Claude Opus 5.5	GPT-6 Sol
Relative bug rate	Launch week	Launch week
Details
Provider	Anthropic	OpenAI
Released	Sep 22, 2026	Sep 22, 2026
List price	$4 input / $20 output per 1M tokens	$2 input / $10 output per 1M tokens

1.00 = average · lower is better

More comparisons

All comparisons →

Claude Opus 5.5 vs GPT-5.5
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Claude Opus 5.5 vs GPT-5.6 Sol
GPT-6 Sol vs GPT-5.5
GPT-6 Sol vs Claude Fable 5
GPT-6 Sol vs GPT-5.6 Sol

Questions and answers

Which has fewer bugs, Claude Opus 5.5 or GPT-6 Sol?: Neither Claude Opus 5.5 nor GPT-6 Sol has enough reviewed code to rank yet.
Which is cheaper, Claude Opus 5.5 or GPT-6 Sol?: Claude Opus 5.5 lists at $4 input / $20 output per 1M tokens; GPT-6 Sol lists at $2 input / $10 output per 1M tokens. GPT-6 Sol has the lower list price.