No "up to" estimates. Every case below is a real engagement or an upstream OSS contribution with before and after numbers you can verify.
Codeflash took Unstructured's document-processing stack from $10K/month to $1.1K/month in seven weeks. 24 PRs across 5 repos, 354 tests green, 9.2× pod density. Four stacked bottlenecks, none of them obvious from a surface-level profile.
Unstructured, Roboflow, Langflow. A defined objective, a real production workload, and a before/after bill you can show your CFO.
vLLM, Hugging Face Diffusers, Pydantic, pdfminer.six, Albumentations. Every PR is public. Every number is reproducible. Maintainers reviewed and merged them.
"The library was already well optimized. But Codeflash submitted 10+ PRs in one week, each making functions 2–55× faster. Now it's part of our GitHub Actions."
20-minute diagnostic. We'll tell you where the waste is before you commit to anything.