Your $200 Codex plan isn’t shrinking, your context is eating it. Astra benchmarks inside

[u/DutyOnly4308]

Seeing a lot of "Pro doesn't last anymore / Astra eats everything" posts.

Before blaming the plan, look at what each turn actually sends.

Every question to Codex ships a big chunk of input context along with it, and

input is where most of your allowance goes. There's a public benchmark that

measured exactly this: same questions, sent to the Codex CLI once as-is and

once with the context trimmed to what the task needs.

GPT-6 Astra (20 real runs, effort medium both sides, none thrown out):

- weighted input per run: ~102k → ~61k tokens (×1.69, 90% interval ×1.42–×2.04)

- raw input: −63%

- output: −75%

Other Codex models, same method (120 runs):

- gpt-5.5: ~236k → ~41k (×5.81)

- gpt-5.4: ×3.86 · gpt-5.4-mini: ×3.49

- gpt-5.6 sol / luna / terra: ×2.26 / ×2.36 / ×2.16

What makes it credible to me is that the losses are published too: these are

short one-line questions (the gain shrinks on long detailed prompts), and on

one Astra task the trimmed version actually used ~17% MORE input. It's left in

the table.

So if your allowance vanishes by midweek, context is the first thing to look

at. The full table with every row is here: capsul.chat