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Anthropic: Claude Haiku 5.5 vs OpenAI: GPT-6 Luna

Anthropic: Claude Haiku 5.5 and OpenAI: GPT-6 Luna are both different kinds of models. This page compares the specs we have. It does not declare a quality winner — Arena and Artificial Analysis keep those numbers.

Anthropic: Claude Haiku 5.5 lessonOpenAI: GPT-6 Luna lessonTest side by side

Live specs

Anthropic: Claude Haiku 5.5OpenAI: GPT-6 Luna
Typechatreasoning
Input$0.100 / M$0.100 / M
Output$0.500 / M$0.500 / M
Context1.0M1.1M
Inputstext, image, filefile, image, text
Toolsyesyes
Weightsunverifiedunverified

PickAnthropic: Claude Haiku 5.5 if

  • you need a chat model

PickOpenAI: GPT-6 Luna if

  • you need a reasoning model
  • the input is long. OpenAI: GPT-6 Luna lists 1.1M context

Saved runs

No public playground runs include both models yet.