Models
5 articles
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AgentsSonnet 5.5 Scored Worse at Max Effort
Claude Sonnet 5.5 scored 52.1% on FrontierCode at xhigh effort and 46.2% at max. Anthropic's footnote says that at max the model more often ran Claude Code's code-review skill, fanning out to subagents, which caused timeouts and out-of-scope edits. Effort now changes behavior, not just thinking depth: pin it per workload, sweep levels on your own eval, and cap fan-out.
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AgentsDeepSeek's Small Model Now Beats Its Big One
DeepSeek shipped V4-Flash-0731 on July 31 with the same architecture and size as the April preview and only a new post-training pass. DeepSWE went from 7.3 to 54.4 and the small model now beats DeepSeek's own larger V4-Pro on every agent benchmark published. The weights got a dated Hugging Face repo. The API kept the same floating name.
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AgentsxAI Trained Grok 4.5 Alongside Cursor. Your Agent Isn't Cursor.
xAI shipped Grok 4.5 on July 8, trained alongside the Cursor editor inside one agent's loop. A benchmark score earned in the harness a model was co-trained with is a ceiling under ideal conditions, not a promise it transfers to your stack. Model choice is quietly becoming model-plus-harness choice.
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ModelsUS Models Fell From 70 to 30 Percent of OpenRouter Traffic in a Year
American models fell from 70 percent of OpenRouter token traffic to about 30 percent in a year, while Chinese open-weight models took the rest. It is a cost story, not a quality story, and real companies are already routing production workloads across the 60 to 90 percent price gap.
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GoogleThe AI Race Flipped. The Cheapest Model Wins Now.
Google and OpenAI launched lightweight models within two hours of each other. The AI race shifted from biggest to cheapest.