Sonnet 5.5 Reportedly in Stealth Testing: 1M Context, $2/$10 per 1M Tokens
socialwithaayan · x · 2026-09-24
@kimmonismus reports (unconfirmed) that Sonnet 5.5 is being stealth tested with a 1M-token context window, 128K max output, and pricing of $2 input / $10 output per 1M tokens—a direct match to GPT-6-Sol's pricing, presumably with comparable or better performance. A replier quips the two labs are matching prices like shops on the same street.
Related event: Rumor: Anthropic Quietly Testing Claude Sonnet 5.5 with 1M Context(2 posts)→
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