Is Jev $0.042 or $0.42 per million tokens?
$0.042 per 1M input tokens. Output is free. That is what TypeSafe’s own model documentation lists, checked 2026-09-22. $0.42 per 1M is ten times too high and appears on a number of pages that currently rank for this question.
Two of the three ways people write it are correct
Most of the confusion is a unit problem rather than a disagreement about the price. These are the three figures in circulation:
| Written as | Per 1M tokens | Verdict |
|---|---|---|
| $0.042 per 1M | $0.042 | Correct |
| $42 per 1B | $0.042 | Correct — same number |
| $0.42 per 1M | $0.42 | Wrong — 10× too high |
A billion is a thousand million, so $42 / 1,000 is $0.042. “$42 per billion” is a headline writer’s way of avoiding a number with two leading zeros, and it is right. The $0.42 figure looks like that conversion done once too few times, or a decimal point that moved during editing.
What the error costs you
A factor of ten is not a rounding difference; it is the difference between a line item nobody questions and one that needs approval. Take the production scenario used on the calculator — 100,000 items a day, a 500-token state, four questions each — which is 2,220,000,000 input tokens a month:
- At $0.042 / 1M (correct)
- $93.24 / month
- At $0.42 / 1M (the wrong figure)
- $932.40 / month
- Overstated by
- $10,070 / year
Budgeting from the inflated number can lose you the decision entirely: a team that believes this workload costs $932.40 a month may conclude Jev is not worth migrating to, when the real figure is $93.24.
How to check it yourself
Do not take this page’s word for it either. The primary source is docs.typesafe.ai/models. TypeSafe can change the price whenever it likes, and every figure on this site is a copy with a date attached — 2026-09-22 for the one above. If you want the numbers in a form you can diff in CI rather than read, this site publishes prices.json, which carries the same figures with their source and check date.
Questions people ask alongside this one
Is Jev $0.042 or $0.42 per million input tokens?
$0.042 per million input tokens. TypeSafe's model documentation lists input at $0.042 per 1M tokens and output at $0.00. A figure of $0.42 per 1M is ten times too high.
Is $42 per billion tokens the same as $0.042 per million?
Yes. A billion is a thousand million, so $42 per 1,000,000,000 tokens divided by 1,000 is $0.042 per 1,000,000 tokens. Both are correct ways to write the same price.
Does Jev charge for output tokens?
No. TypeSafe lists output at $0.00. Jev returns a typed decision rather than generated text, and the bill is a function of input tokens only.
How can I check Jev's current price myself?
Read docs.typesafe.ai/models, which is the primary source. Prices change, so treat any third-party page, including this one, as a copy that carries a date.