What does it cost to level Alchemy right now?

4.4kg in reagents at today's EU auction prices, over about 134 crafts. Sell the results and it comes back to 4kg.

Where do these numbers come from?

The skill thresholds are read from the game client data for build 12.1.0.68914. The prices are the region-wide auction house, refreshed every few minutes; these are the snapshot taken at 13:31 UTC.

Why does the route change when I reload?

Because the prices did. The cheapest recipe for a stretch of skill is whichever one's reagents are cheapest at that moment, and that moves through the day.

Profession leveling · Midnight Alchemy · EU · prices as of 13:31 UTC

Alchemy leveling 1 → 100

4.4kg in reagents over about 134 crafts. Sell what you make and it comes back to 4kg.

Start skill

Trainer recipes only

Recipe names carry the colour the profession window gives them: orange is a point every craft, yellow is three in four, green is one in four.

Before the first craft — buy it all at once

One trip to the auction house. Vendor lines are cheaper from the profession vendor than from the board.

ReagentNeedEachTotal

Tranquility Bloom×9122

Mote of Wild Magic×1481

Mote of Pure Void×5640

×5622

Total4,438

Step 1 · Skill 1 → 32

Orange→Yellow

Entropic Extract

trainerfirst craft: +Knowledge

About 32 crafts.662

per skill point21

Sunglass Vial×160

Tranquility Bloom×96

Step 2 · Skill 32 → 60

Orange

Haranir Phial of Ingenuity

researchfirst craft: +Knowledge

About 28 crafts.997

per skill point35

Mote of Pure Void×56

Sunglass Vial×112

Tranquility Bloom×224

Sanguithorn×168

Mana Lily×84

Step 3 · Skill 60 → 100

Orange→Green

Potion of Devoured Dreams

researchfirst craft: +Knowledge

About 74 crafts.2,778

per skill point69

Mote of Wild Magic×148

Sunglass Vial×370

Tranquility Bloom×592

Mana Lily×296

Skill 100 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Potion of Devoured Dreams742

200

74200

Haranir Phial of Ingenuity284

Capped at what the market takes in 3 days, so a route never pretends to sell hundreds at once.

Back in your pocket4,003

What's worth crafting with Alchemy right now

Questions

How this route is built

What does it cost to level Alchemy right now?: 4.4kg in reagents at today's EU auction prices, over about 134 crafts. Sell the results and it comes back to 4kg.
Where do these numbers come from?: The skill thresholds are read from the game client data for build 12.1.0.68914. The prices are the region-wide auction house, refreshed every few minutes; these are the snapshot taken at 13:31 UTC.
Why does the route change when I reload?: Because the prices did. The cheapest recipe for a stretch of skill is whichever one's reagents are cheapest at that moment, and that moves through the day.

A first craft pays Knowledge, not skill, so it is shown as a badge and left out of the craft count. Vendor reagents are priced at the lower of the vendor and the auction house.