The gap between cheapest and most expensive is real.
The same prompt can cost $0.004 on one model and $0.18 on another. At 1,000 runs a day that's the difference between $120/month and $5,400/month.
Paste any prompt. See what it costs across Claude, GPT-4o, Gemini, DeepSeek and more — ranked cheapest to most expensive, in seconds.
AI billing hits differently at scale. CheyX lets you check before you commit.
Add supporting documents or context too. Token counts use the cl100k tokenizer — no character guesswork.
Short reply, detailed explanation, or full document. The estimate adjusts automatically to match.
22 models ranked cheapest to most expensive. Monthly projections and a recommended pick included.
The same prompt can cost $0.004 on one model and $0.18 on another. At 1,000 runs a day that's the difference between $120/month and $5,400/month.
Eight providers, 22 models — all priced and ranked in one place.
Not just a token counter. CheyX helps you make the call before you spend.
Uses cl100k where available, calibrated character heuristic as fallback. No guessing, no surprises.
Enter runs per day. CheyX extrapolates your monthly spend and flags your cheapest path to scale.
GBP, EUR, CAD, AUD, INR, JPY, AED, ZAR — see costs in what's actually real to you, alongside USD.
CheyX reads your use case and recommends a model — not just cheapest, but the right fit for the task.
Running a fine-tuned or private endpoint? Add it with your own per-token pricing and include it in the comparison.
Switch to Production mode for batch and cached rates — what you'd actually pay at volume, not rack rate.
Free, no login, no setup.
Paste a prompt and get your answer in seconds.