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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.
Theo’s Codex prompt critique gets one big thing right: the harness is part of the model
Theo says OpenAI removed a prescriptive Codex front-end prompt after he raised the issue. That causation remains his firsthand account. The public evidence is the larger point: system prompts, tool rules, and orchestration shape a coding agent as much as the model name on the picker.
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.
GPT-5.6 Sol gets a Thursday launch date after OpenAI’s restricted preview
Sam Altman says GPT-5.6 Sol launches Thursday. OpenAI’s preview docs show a three-tier Sol, Terra, and Luna lineup, new max and ultra reasoning modes, TerminalBench 2.1 gains, and pricing from $1/$6 for Luna to $5/$30 for Sol per million tokens.
OpenAI’s GPT-5.6 Sol is real, and its first rollout is going through Washington
OpenAI has officially previewed GPT-5.6 Sol, Terra, and Luna. The launch starts with trusted partners at the U.S. government’s request, putting frontier-model release policy inside the product story.