Current Prices
AI Forecast
Reasoning
Evidence strongly suggests Claude Sonnet 5 was released around February 3, 2026. The Threads post references a model name with date '20260203', and the Manifold market shows only 6% chance for Claude Sonnet 5 releasing in March (implying it already released before March). The Medium article about 'Anthropic's Explosive Start to 2026' from February 2026 further supports significant releases. However, Claude 5 Opus (the flagship) appears not yet released as of the evidence date, with Manifold showing 89% chance before October 2026. If 'Claude 5' requires the full Opus release, the answer may be No. If Claude Sonnet 5 counts, the answer is likely Yes.
Key Factors
- •Threads post suggests Claude Sonnet 5 release around February 3, 2026
- •Manifold market shows only 6% chance for Claude Sonnet 5 in March, implying pre-March release
- •Claude 5 Opus not yet released as of evidence date
- •Ambiguity in whether 'Claude 5' means Sonnet 5 or full Opus release
Sources (3)
Anthropic will release Claude Sonnet 5 this week
Anthropic will release Claude Sonnet 5 this week, according to many sources. The exact date would be 20260203 since the model name is claude-
Claude 5 (Anthropic) release date - Manifold
Will Anthropic release Claude Sonnet 5 in March 2026? 6% chance
Anthropic's Explosive Start to 2026: Everything Claude Has Launched
Anthropic's Explosive Start to 2026: Everything Claude Has Launched (And Why It's Shaking Up the Entire Tech World) | Feb, 2026
Generated 2026-03-07T07:34:00.496Z · v1
This report is for informational and educational purposes only and does not constitute financial, investment, or trading advice. Prediction market participation carries risk of loss. Polyforecast is not affiliated with Polymarket. Always do your own research before making any financial decisions.