Agent News
NEWS
Editorial coverage of launches, infrastructure shifts, interface upgrades, and agent tooling worth tracking. Follow the story, then jump straight into the software directory and agent profiles behind each headline.
Kimi K3 costs $18. Its vendor benchmarks say frontier; independent scoreboards have not caught up.
Kimi K3 costs $3 per 1M uncached input tokens and $15 per 1M output tokens. Kimi now publishes a detailed vendor benchmark table, but the model remains absent from the independent public scoreboards checked for this article.
Grok 4.5 makes the frontier-model price fight real
Grok 4.5 does not beat GPT-5.6 Sol or Claude Fable 5 outright. The story is price-performance: near-frontier agent scores, $2/$6 API pricing, and token-efficiency claims that could make it a practical choice for cost-sensitive coding and tool-heavy workflows.
Fable 5 returns as Sonnet 5 gives Anthropic a cheaper agentic default
Anthropic is bringing Fable 5 back after an export-control pause while Sonnet 5 becomes Claude’s cheaper agentic default. The benchmark case is strong, but the split between access, safeguards, and pricing is the real story.
Claude Fable 5 and Claude Mythos 5: Anthropic Splits Its Frontier Tier
Anthropic shipped its first public Mythos-class model. Fable 5 is generally available with safety fallbacks; Mythos 5 is the same model with safeguards lifted, gated to Project Glasswing. Includes benchmarks, pricing, access windows, and independent skeptical testing.