Speculation Claims Anthropic Switched to Mythos for Internal Training
Posts discuss a hypothesis that Anthropic internally adopted an unreleased Mythos model after Opus 4.6.
A post by @wolframs91 speculates that Claude Opus 4.6 was the last version widely used by Anthropic employees. Later versions including 4.7, 4.8, and 5 were instead refined through RLAIF training with an internal model named Mythos. Danielle Fong retweeted the claim and Teortaxes replied that the idea makes sense given how likeable Opus 4.6 appeared. The conversation centers on visible replies to the original post on X.
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What if: - Opus 4.6 was the last Opus generation that got a lot of use by Anthropic's own employees - After that they primarily used Mythos internally - 4.7, 4.8 and 5 were RLAIFd by Mythos "teachers" - Hence why 4.6 is the last Opus gen who doesn't report back like a robot…
gotta be related
What if: - Opus 4.6 was the last Opus generation that got a lot of use by Anthropic's own employees - After that they primarily used Mythos internally - 4.7, 4.8 and 5 were RLAIFd by Mythos "teachers" - Hence why 4.6 is the last Opus gen who doesn't report back like a robot…
Makes sense Opus 4.6 was likeable
What if: - Opus 4.6 was the last Opus generation that got a lot of use by Anthropic's own employees - After that they primarily used Mythos internally - 4.7, 4.8 and 5 were RLAIFd by Mythos "teachers" - Hence why 4.6 is the last Opus gen who doesn't report back like a robot…
What if: - Opus 4.6 was the last Opus generation that got a lot of use by Anthropic's own employees - After that they primarily used Mythos internally - 4.7, 4.8 and 5 were RLAIFd by Mythos "teachers" - Hence why 4.6 is the last Opus gen who doesn't report back like a robot…
Interesting theory.
What if: - Opus 4.6 was the last Opus generation that got a lot of use by Anthropic's own employees - After that they primarily used Mythos internally - 4.7, 4.8 and 5 were RLAIFd by Mythos "teachers" - Hence why 4.6 is the last Opus gen who doesn't report back like a robot…
Interesting violation of “you should dogfood your own product”
What if: - Opus 4.6 was the last Opus generation that got a lot of use by Anthropic's own employees - After that they primarily used Mythos internally - 4.7, 4.8 and 5 were RLAIFd by Mythos "teachers" - Hence why 4.6 is the last Opus gen who doesn't report back like a robot…