22nd October 2024 - Link Blog
Wayback Machine: Models - Anthropic (8th October 2024). The Internet Archive is only intermittently available at the moment, but the Wayback Machine just came back long enough for me to confirm that the Anthropic Models documentation page listed Claude 3.5 Opus as coming “Later this year” at least as recently as the 8th of October, but today makes no mention of that model at all.
October 8th 2024
October 22nd 2024
Claude 3 came in three flavors: Haiku (fast and cheap), Sonnet (mid-range) and Opus (best). We were expecting 3.5 to have the same three levels, and both 3.5 Haiku and 3.5 Sonnet fitted those expectations, matching their prices to the Claude 3 equivalents.
It looks like 3.5 Opus may have been entirely cancelled, or at least delayed for an unpredictable amount of time. I guess that means the new 3.5 Sonnet will be Anthropic's best overall model for a while, maybe until Claude 4.
Recent articles
- OpenAI’s accidental cyberattack against Hugging Face is science fiction that happened - 22nd July 2026
- A Fireside Chat with Cat and Thariq from the Claude Code team - 21st July 2026
- Kimi K3, and what we can still learn from the pelican benchmark - 16th July 2026