Updated

Claude Haiku 5.5 vs Claude Opus 5.5

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

Claude Haiku 5.5 and Claude Opus 5.5 compared on relative bug rate and on price.
Claude Haiku 5.5Claude Opus 5.5
Bug rate
Relative bug rateLaunch week1.62
Details
ProviderAnthropicAnthropic
ReleasedOct 7, 2026Sep 22, 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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Questions and answers

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