Google Gemma 4 2B Deployed on Single TPU v5e Chip Using MCP and Antigravity CLI

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A developer has documented deploying Google's Gemma 4 2B language model on a single Cloud TPU v5e chip, serving as a self-hosted DevOps and SRE assistant. The setup uses an MCP server with 31 tools to provision the TPU, deploy a vLLM container, and analyze Cloud Logging output via Antigravity CLI, the successor to Gemini CLI. The v5e chip costs roughly $1.20 per chip-hour on-demand compared to $2.70 for the newer v6e, making it about 2.25 times cheaper despite offering around 4.7 times fewer raw FLOPS. For a 2B model that is memory-bandwidth-bound rather than compute-bound during decoding, the v5e's performance-to-cost ratio proves competitive with the pricier v6e. A key architectural improvement in this setup centralizes all deployment parameters in a single configuration file, eliminating the configuration drift issues encountered in the earlier v6e deployment.

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