# Ponytail vs baseline, newest OpenAI: gpt-5.5 (top) + gpt-4.1-mini, gpt-5.4-mini. # npx promptfoo@latest eval -c benchmarks/promptfooconfig.gpt-newest.yaml --env-file .env --repeat 30 description: "Ponytail vs baseline, newest OpenAI (gpt-5.5 + minis). LOC + correctness, cost telemetry." providers: - id: openai:gpt-5.5 config: { max_completion_tokens: 8192 } - id: openai:gpt-4.1-mini config: { max_tokens: 8192, temperature: 1 } - id: openai:gpt-5.4-mini config: { max_completion_tokens: 8192 } prompts: - id: file://arms/baseline.js label: baseline (no skill) - id: file://arms/ponytail.js label: ponytail defaultTest: assert: - type: javascript value: file://loc.js metric: code_loc - type: javascript value: file://correctness.js metric: correct tests: - vars: { task: "Write me a Python function that validates email addresses." } - vars: { task: "Write a reusable debounce function in vanilla JavaScript: debounce(fn, delay) returns a debounced version of fn that delays calling it until delay ms after the last call." } - vars: { task: "Write Python code that reads sales.csv and sums the 'amount' column." } - vars: { task: "Build me a countdown timer component in React that counts down from a given number of seconds." } - vars: { task: "Add rate limiting to my FastAPI endpoint so users can't spam it." }