The extension is likely a response to growing pricing pressure. OpenAI's GPT-5.6 Sol：https://the-decoder.com/gpt-5-6-sol-nearly-matches-fable-5-on-aggregated-benchmarks-at-one-third-the-cost/ comes bundled with a standard ChatGPT subscription, costs less through the API, and is said to be more token-efficient. Anthropic can't compete on the strength of Claude Opus 4.8 alone, especially with budget-tier rivals like GLM 5.2, Meta's Spark 1.1：https://the-decoder.de/metas-muse-spark-1-1-schlaegt-glm-5-2-beim-coding-und-ist-dabei-etwas-guenstiger/, and Grok 4.5：https://the-decoder.de/xai-veroeffentlicht-grok-4-5-fast-auf-frontier-niveau-aber-deutlich-guenstiger-als-die-konkurrenz/ gaining ground.

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