Which is cheaper, Claude Haiku 5.5 or GPT-5.6 Sol?

Claude Haiku 5.5 lists at $0.10 input / $0.50 output per 1M tokens; GPT-5.6 Sol lists at $4 input / $20 output per 1M tokens. Claude Haiku 5.5 has the lower list price.

Updated Oct 10, 2026

Claude Haiku 5.5 vs GPT-5.6 Sol

Claude Haiku 5.5 does not have enough reviewed code to rank yet.

Claude Haiku 5.5 and GPT-5.6 Sol compared on relative bug rate and on price.
Bug rate
	Claude Haiku 5.5	GPT-5.6 Sol
Relative bug rate	Launch week	0.68
Details
Provider	Anthropic	OpenAI
Released	Oct 7, 2026	Jul 9, 2026
List price	$0.10 input / $0.50 output per 1M tokens	$4 input / $20 output per 1M tokens

1.00 = average · lower is better

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GPT-5.6 Sol vs GPT-6 Astra

Questions and answers

Which has fewer bugs, Claude Haiku 5.5 or GPT-5.6 Sol?: Claude Haiku 5.5 does not have enough reviewed code to rank yet.
Which is cheaper, Claude Haiku 5.5 or GPT-5.6 Sol?: Claude Haiku 5.5 lists at $0.10 input / $0.50 output per 1M tokens; GPT-5.6 Sol lists at $4 input / $20 output per 1M tokens. Claude Haiku 5.5 has the lower list price.