Expired50% confidenceEventExact time
Anthropic's Opus 5.5 and OpenAI's next-generation model were released at almost the same time.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/30/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/14/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedOpenAI has introduced a new Ultra parallel mode that can run 4 independent agents simultaneously.74% similarUnverifiedOnce Anthropic releases a new model, OpenAI typically follows shortly after with a competing product.73% similarUnverifiedModel companies such as Anthropic and OpenAI have successively launched official prompt libraries.72% similarUnverifiedBoth OpenAI and Anthropic have begun offering version pinning services, allowing users to continue using older versions before confirming compatibility.72% similarUnverifiedOpenAI released five updates, including three new models, a desktop-level intelligent agent, and a real-time translation voice model.71% similar
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