Agent news
NEWS
Coverage of AI agent launches, model releases, pricing, and security, with links to related software and agent profiles.
Kimi K3.1 Pro cuts API rates; weights promised by November 4
Moonshot's new model lowers K3's per-token API rates by a third. Independent testing puts it near the top on intelligence, but slow output and heavy token use complicate the savings.
Claude Opus 5.5 lowers API prices, but its benchmark story needs more than a 40% headline
Anthropic’s new flagship model starts at $4 per million input tokens and $20 per million output tokens. Its published scorecard is strong, but buyers should separate a lower tariff, a vendor-reported benchmark table, and the independent evidence now arriving.
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.