Sub 2:30 plan

I asked my friend chatGPT to generate a plan. After a few prompts I have this one. Minus the tempos being too long on Tuesdays I'm thinking this is a pretty solid plan?

Week 1-20 Marathon Training Plan (Peak at 100 Miles/Week)
WeekMondayTuesdayWednesdayThursdayFridaySaturdaySunday1
10 miles easy
10 miles with 6 miles tempo
10 miles easy
12 miles with 6x1 mile at 10k pace
10 miles easy
16 miles long run with 4 miles at MP
8 miles recovery
2
10 miles easy
11 miles with 7 miles tempo
10 miles easy
13 miles with 8x800m at 5k pace
10 miles easy
18 miles long run with 5 miles at MP
8 miles recovery
3
10 miles easy
12 miles with 8 miles tempo
10 miles easy
14 miles with 10x1k at 10k pace
10 miles easy
20 miles long run with 6 miles at MP
9 miles recovery
4
10 miles easy
13 miles with 9 miles tempo
11 miles easy
15 miles with 12x400m at 5k pace
11 miles easy
22 miles long run with 7 miles at MP
9 miles recovery
5
10 miles easy
14 miles with 10 miles tempo
12 miles easy
16 miles with 10x800m at 5k pace
12 miles easy
22 miles long run with 8 miles at MP
10 miles recovery
6
10 miles easy
15 miles with 11 miles tempo
12 miles easy
17 miles with 12x1k at 10k pace
12 miles easy
22 miles long run with 9 miles at MP
10 miles recovery
7
10 miles easy
16 miles with 12 miles tempo
12 miles easy
18 miles with 14x400m at 5k pace
12 miles easy
23 miles long run with 10 miles at MP
10 miles recovery
8
8 miles easy
10 miles with 6 miles tempo
8 miles easy
10 miles with 6x1 mile at 10k pace
8 miles easy
16 miles long run with 5 miles at MP
8 miles recovery
9
12 miles easy
17 miles with 13 miles tempo
13 miles easy
19 miles with 12x800m at 5k pace
13 miles easy
24 miles long run with 12 miles at MP
12 miles recovery
10
12 miles easy
18 miles with 14 miles tempo
13 miles easy
20 miles with 14x1k at 10k pace
13 miles easy
25 miles long run with 13 miles at MP
12 miles recovery
11
12 miles easy
19 miles with 15 miles tempo
13 miles easy
21 miles with 16x400m at 5k pace
13 miles easy
26 miles long run with 14 miles at MP
12 miles recovery
12
10 miles easy
12 miles with 6 miles tempo
10 miles easy
13 miles with 8x1 mile at 10k pace
10 miles easy
18 miles long run with 8 miles at MP
10 miles recovery
13
10 miles easy
14 miles with 7 miles tempo
10 miles easy
15 miles with 10x800m at 5k pace
10 miles easy
20 miles long run with 9 miles at MP
10 miles recovery
14
10 miles easy
15 miles with 8 miles tempo
10 miles easy
16 miles with 12x1k at 10k pace
10 miles easy
22 miles long run with 10 miles at MP
10 miles recovery
15
10 miles easy
16 miles with 9 miles tempo
10 miles easy
17 miles with 14x400m at 5k pace
10 miles easy
22 miles long run with 11 miles at MP
10 miles recovery
16
8 miles easy
10 miles with 6 miles tempo
8 miles easy
10 miles with 6x1 mile at 10k pace
8 miles easy
16 miles long run with 6 miles at MP
8 miles recovery
17
10 miles easy
12 miles with 7 miles tempo
10 miles easy
14 miles with 10x800m at 5k pace
10 miles easy
18 miles long run with 8 miles at MP
10 miles recovery
18
8 miles easy
12 miles with 6 miles tempo
8 miles easy
13 miles with 8x1 mile at 10k pace
8 miles easy
16 miles long run with 7 miles at MP
8 miles recovery
19
8 miles easy
10 miles with 5 miles tempo
8 miles easy
10 miles with 6x800m at 5k pace
8 miles easy
14 miles long run with 6 miles at MP
8 miles recovery
20
6 miles easy
8 miles with 4 miles tempo
6 miles easy
6 miles with 4x1k at 10k pace
6 miles easy
4 miles easy
Race Day

The chat bot's plan isn't too bad. I would do the longer "tempos" as marathon pace instead and maybe shorten a couple of the repeat sessions - 10 800s at 5k pace sounds like murder. Either do them 10k pace or a bit slower. That's still a pretty tough workout.

12x1k at 10k pace - do them at half pace

14x400m at 5k pace do them 10k to half pace

etc

In general just don't run more than a race distance at race pace in marathon training. If you want to do the reps that fast you will need full recovery but I don't think that is so beneficial in marathon training - the name of the game is running on tired legs a lot of the time. The training is basically to go as far as possible without bonking at your level.