More likely that they are embarrassed by how their attempts compare with OpenAI's Haiku analog, Luna.
Not so sure since Anthropic has 4 model families while OpenAI has 3 for GPT-5.6.
Claude Fable/Mythos vs GPT-5.6 Sol
Claude Opus vs GPT-5.6 Terra
Claude Sonnet vs GPT-5.6 Luna
Claude Haiku vs ?
Not so sure since Anthropic has 4 model families while OpenAI has 3 for GPT-5.6.
Claude Fable/Mythos vs GPT-5.6 Sol
Claude Opus vs GPT-5.6 Terra
Claude Sonnet vs GPT-5.6 Luna
Claude Haiku vs ?