Same prompt run through GPT 6 Astra in Codex at all six effort levels.
Low: 7,923 tokens, 4 min, $0.63
Medium: 9,085 tokens, 5 min, $0.69
High: 19,596 tokens, 10 min, $1.21
Extra high: 34,420 tokens, 19 min, $1.95
Max: 37,241 tokens, 20 min, $2.09
Ultra: 27,465 tokens, 14 min, $1.84
Max used nearly 5x the tokens of low and produced the best result.
Full GPT 6 Astra outputs from every level in the thread below.