adaptive-thinking AI
2 picks we've reviewed.
paid · Proprietary (closed, hosted only) · 1M tokens in4w ago
model general LLM
Claude Sonnet 5
Anthropic's Sonnet-tier model — 'the best combination of speed and intelligence.' Near-frontier on coding and agentic work at roughly a third of Opus's price, with a 1M-token context and adaptive thinking on by default.
Anthropic
paid · Proprietary (closed, hosted only) · 1M tokens in2mo ago
model frontier LLM
Claude Opus 4.8
Anthropic's most capable Opus-tier model, built for complex agentic coding and enterprise work — a 1M-token context, adaptive thinking, and 128K max output, hosted only via the Claude API.
Anthropic