The board · maintained by hand
Models
What you build on. The frontier tiers, the workhorses and the small fast ones, with the context window and list price that decide most of the argument.
Claude Fable 5
Anthropic · 9 Jun 2026
Anthropic's most capable widely released model. 1M context, adaptive thinking always on, slower. $10/$50 per MTok.
frontier
GPT-5.6 Sol
OpenAI
Frontier tier for complex professional work. 1.05M context.
frontier
Claude Opus 5
Anthropic · 24 Jul 2026
What Anthropic tells you to reach for on agentic coding and enterprise work. 1M context, $5/$25.
agentic
Claude Sonnet 5
Anthropic · 30 Jun 2026
The workhorse. Most agent loops should start here and move up only when they measurably need to. $2/$10.
balanced
GPT-5.6 Terra
OpenAI
The intelligence-versus-cost middle of the GPT-5.6 line. 1.05M context.
balanced
Gemini 3.6 Flash
Google
Current stable Flash tier, balancing speed with intelligence. Google's docs don't clearly name a 3.x Pro tier.
balanced
Claude Haiku 4.5
Anthropic
Cheap and fast for classification, routing and the hundred small calls inside a bigger system. 200k context, $1/$5.
small
GPT-5.6 Luna
OpenAI
Aimed at cost-sensitive, high-volume workloads. Same 1.05M context as the rest of the line.
small
Claude Mythos 5
Anthropic · Project Glasswing
Fable 5's specs without the safeguards, for defensive cybersecurity. Invitation-only, no self-serve sign-up.
restricted
Hand-maintained, not a feed. Checked 12 Aug 2026 against Anthropic's model docs, OpenAI's model list and Google's Gemini docs. Model names, prices and context sizes come from those pages. Prices are per million tokens, input/output, list rate.