AI Dev Weekly #8: Mistral Medium 3.5 Goes Open-Weight, GPT-5.5 Lands in Codex, and Anthropic's $200 Billing Bug
This week: Mistral drops a 128B open-weight flagship with cloud coding agents, GPT-5.5 replaces 5.4 at 40% less cost, and Anthropic charges a user $200 extra then refuses a refund.
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CLI$ mfkvault install devto-3590711-ai-dev-weekly-8-mistral-medium-35-goes-open-weight-gpt-55-lands-inRequires the MFKVault CLI. Prefer MCP?
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Description
This week: Mistral drops a 128B open-weight flagship with cloud coding agents, GPT-5.5 replaces 5.4 at 40% less cost, and Anthropic charges a user $200 extra then refuses a refund. Tag: anthropic Reading time: 5 min Positive reactions: 1 Full article: https://dev.to/ai_made_tools/ai-dev-weekly-8-mistral-medium-35-goes-open-weight-gpt-55-lands-in-codex-and-anthropics-200-2bb8
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