I will be starting a batch of cuttings and when they are ready to pot will  1 gallon pots be good a size to last enough for the  whole first year?

Soni

My vote would be no. I'd move up to a much larger pot, container, especially if your intention is to keep and grow in a container. If the plant s established, you want o ive it room to spread it's roots and grow. Smaller pot requires much more attention o water, fertilizer, temperature fluctuations.

I sometimes get into a 30 gallon tub from first year plants, depends on how fast the roots grow, but I usually end up in 5-10 gallon pot in general.

I move up rooted cuttings into different sizes. It depends on several things. First, how 'dear' the cutting is. If it's from a prized plant and it's very healthy, I'll usually go directly into a 2 to 5 gallon. If it's a cutting that is not too special, or if there were many of the same variety that rooted and I know I'll be giving them away, I put them into 1 gallons. Some I put into 2 or 3 gallon containers.

Sometimes practical situation rules - it depends on how much mix I have on hand, or the size pots I have, or the ground space that is available on which to put them. They all generally survive, and something in a smaller pot can be moved up later if desired.

Most of my figs eventually will be going into the ground, so their life in a pot is going to be temporary. With very few exceptions, 5 gallon is going to be the largest.

Wow, I never jump up more then up to a 1 gallon pot.  I let them stay in a one gallon for a while and if needed I will move them up again. I did start to use wider  pots then taller. The wider are much more stable once the tree starts to grow.

  I plan to get them intothe gorund as soon as possible but I was going to keep them in the gargae or green house over the first winter, My greenhouse is only 6x8 so i dont want the pots too large

Last year, I went straight from sphagnum moss filled baggies to the ground with good success for those planted before the last week of March.  If you are growing them in containers for a single growing season, one gallon containers will be sufficient.

I am in Zone 8B, but I don't think for my specific location it is accurate.  The nearest weather station is 12 miles away.  Given the difference in the condition of my trees and trees near the station after winter, it might as well be 1,200 miles away. 

At the time, those trees were going home.

first year i started this fig thing, i up potted 2 times ending up in 10 gal container. the trees grew very well. last year, i just left all my spring cuttings in 1 gal. still needs to be up potted to larger pot. more than likely more precious ones will go into 10 gal and others will go into 5 gal. they are nicely root bound. i'll have to untangle them and give them some root pruning. cuttings just rooted will do fine in 1 gal container.

I keep all my plants in containers with the largest being 15 gallons, but I've opted for more varieties as opposed to more individual fruits and size. I've always put my rooted cuttings in the large true 1 gal containers, but I sell and give away a lot of plants locally and this year will be using the smaller "trade" 1 gal pots for anything I'll sell or anything dear I know will be up potted soon. I've kept plants in the larger 1 gal pots for a year in the past and they've been fine, BUT -- I work from a home office and can water 2x a day if needed. The reason I'll use smaller pots this year is simply the cost of the soil I use. It's expensive but I like it a lot (fafard #52) and that I want to offer those figs I do sell at a lower price point so folks can buy more varieties as I keep track of every fig I sell or gift locally and can later use the success or failure of these "other" trees to form a larger data base for "best figs for the Virginia Piedmont". Sorry -- drifting . . .
Yes - you can keep a fig in a 1 gallon pot, but it will require extra attention. A 3 gallon pot is a good compromise in my opinion. 
Also, if you have a lot of small pots they tend to get wet leaves when watered and this can cause problems.