Grok 4.5: change Coding and Knowledge Work with Cursor Training

Training a coding model alongside a live AI editor — not against synthetic benchmarks, but inside the actual loops a developer runs all day — is the genuinely interesting part of Grok 4.5. The 4.2× output-token efficiency on SWE Bench Pro is the part that lands on the invoice. Together they're the most concrete training-and-cost story a frontier model has shipped in a while.

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This is an excerpt. Read the full post at otf-kit.dev/blog/grok-4-5-cursor-trained-model — full-stack kits your AI coding agent can actually ship to production. Browse the kits →