AI ModelClaude SonnetbyAnthropicAnthropic's balanced model offering strong performance at a lower cost than Opus.Latest version:5RumoredAll VersionsClaude Sonnet 5RumoredRumored to be released on February, 2026Why it's rumored:"Model-style identifier" associated with Vertex / logs and activity in prediction markets.What to expect:Focus on coding/agentic, and price-performance improvements (e.g. similar to top models but cheaper).View details