GPT-5.6 SVG reasoning-effort comparison

Prices per 1M input/output tokens: Luna $1/$6, Terra $2.50/$15, Sol $5/$30.

Effort gpt-5.6-luna gpt-5.6-terra gpt-5.6-sol
none
gpt-5.6-luna, reasoning effort none
16 input tokens, 1,176 output = 0.71 cents
gpt-5.6-terra, reasoning effort none
26 input tokens, 1,731 output = 2.60 cents
gpt-5.6-sol, reasoning effort none
26 input tokens, 1,961 output = 5.90 cents
low
gpt-5.6-luna, reasoning effort low
16 input tokens, 1,258 output = 0.76 cents
gpt-5.6-terra, reasoning effort low
26 input tokens, 2,312 output = 3.47 cents
gpt-5.6-sol, reasoning effort low
26 input tokens, 2,772 output = 8.33 cents
medium
gpt-5.6-luna, reasoning effort medium
16 input tokens, 2,089 output = 1.26 cents
gpt-5.6-terra, reasoning effort medium
26 input tokens, 2,302 output = 3.46 cents
gpt-5.6-sol, reasoning effort medium
26 input tokens, 3,511 output = 10.55 cents
high
gpt-5.6-luna, reasoning effort high
16 input tokens, 4,098 output = 2.46 cents
gpt-5.6-terra, reasoning effort high
26 input tokens, 2,486 output = 3.74 cents
gpt-5.6-sol, reasoning effort high
26 input tokens, 3,454 output = 10.38 cents
xhigh
gpt-5.6-luna, reasoning effort xhigh
16 input tokens, 7,072 output = 4.24 cents
gpt-5.6-terra, reasoning effort xhigh
26 input tokens, 9,776 output = 14.67 cents
gpt-5.6-sol, reasoning effort xhigh
26 input tokens, 8,033 output = 24.11 cents
max
gpt-5.6-luna, reasoning effort max
16 input tokens, 13,040 output = 7.83 cents
gpt-5.6-terra, reasoning effort max
26 input tokens, 21,390 output = 32.09 cents
gpt-5.6-sol, reasoning effort max
26 input tokens, 16,180 output = 48.55 cents