What happened
FastMetal began offering five models on November 10, 2026: Anthropic's Claude Fable 5.2, Meta's Muse Ember, Z.ai's GLM 5.3 Flash and GLM 5.3 FlashX Legal, and Deep Principle's Hydrogen 1.0. All five handle about 1 million tokens of context.
Why it matters
A single account now reaches five models from four developers, including both top-tier and low-cost options, with all fees billed in yen and prepaid so users cannot be charged beyond their balance, which may simplify cost control for teams trying multiple models.
WHO IT HITSTeams comparing or combining multiple AI models for chat and API use — such as developers building assistants and legal staff evaluating document tools — can access these models through one FastMetal account with yen-based prepaid billing.
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FastMetal positions itself as an AI gateway where one account reaches models from multiple developers. This release widens that catalog to four developers at once, mixing Anthropic's top-tier Claude Fable 5.2 with smaller, task-focused models such as Meta's Muse Ember for high-volume routine work and Z.ai's GLM 5.3 FlashX Legal for legal practice. The lineup also includes a version of GLM 5.3 Flash whose inference runs on servers in Japan, which FastMetal says can be selected by model name for uses that require domestic processing.
Pricing is set per 1 million tokens in yen before tax, and the service is prepaid, so spending is capped at the charged balance. Payment supports credit cards and bank transfers, and qualified invoices for the Japanese invoice system are issued. FastMetal says it will continue adding new AI models as they are released.
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