Expired50% confidenceFactExact time
The leaked Anthropic new Sonnet features a 1 million token context window, an output length of 128,000 tokens, Thinking enabled by default, and removal of forced tool use.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/28/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/12/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedQwythos-9B supports a context window of up to 1.04 million tokens.58% similarUnverifiedFor operations known to produce large amounts of noise, they should be run inside a sub-agent (such as a Sonnet or Haiku sub-agent) to isolate the required output and avoid polluting the main orchestration window.56% similarUnverifiedWithin Anthropic's model lineup, the Sonnet series is positioned as a mid-tier general-purpose option, while the Haiku series focuses on low-latency, lightweight tasks.56% similarUnverifiedThere is another similar model family called Cave, built on Qwen, offering multiple parameter sizes including 9B, 4B, and 800M, which is open-source and can run locally.54% similar
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