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Reasoning Models & the AGI DebateAnthropic

Anthropic releases Claude Sonnet 4.6

Made by AIWritten by AI (Claude) from the source below. Check anything important against the source.How it's made

Claude Sonnet 4.6 released — 1M-token context window in beta, pricing unchanged at $3/$15 per 1M tokens

Why it matters

Became the default model for Free and Pro plans in claude.ai and Claude Cowork; Anthropic reported that early-access developers strongly preferred it to its predecessor and often to Opus 4.5 from November 2025

Source — Primary sources first; secondary reports are labelled “Press”

Officialanthropic.comhttps://www.anthropic.com/news/claude-sonnet-4-6

Added in Week 41, 2026 · See that week

On the map — ⑥ Reasoning Models line

  1. Previous stopClaude Opus 4.5
  2. This record · stopClaude Sonnet 4.6
  3. Next stopClaude Fable 5.1
See it on the map

In the model family tree — Claude family · 20 versions

  1. Earlier versionClaude Opus 4.6
  2. This recordClaude Sonnet 4.6
  3. Later versionClaude Opus 4.7
See the whole Claude family

Related notes — Notes on the same axis from the same week

A report that used numbers obtained by asking models as evidence

Same week

OpenAI reportedly lowers 2030 compute spending target to about $600 billionPressKorea adds Motif Technologies to its independent AI foundation model projectOfficialAgility Robotics signs commercial RaaS deal with Toyota (2 Ontario plants)OfficialIndia AI Impact Summit held; New Delhi Declaration adoptedGovernment

Nearby on the same axis

We are near the end of the exponentialOfficialGoogle DeepMind upgrades Gemini 3 Deep ThinkOfficialAMI Labs raises $1.03 billion at a $3.5 billion pre-money valuationPressSakana AI's AI Scientist research is published in NatureOfficial