Op
gpt-5.5 Benchmark & Insights
OpenAI OpenAI API
Updated Jul 31, 2026 All models
Sample size
170 runs
in window
Accuracy
90.9%
consensus match · 208d
Confidence
87%
over 210 runs
Window end
Jul 31, 2026
most recent run
Input price
$5.00/MTok
prompt tokens
Output price
$30.00/MTok
completion tokens
Model insights
- 01 Textbook one-note pessimism: thirteen of its sixteen misses are the identical call, "medium" where consensus said "low".
- 02 It shares the highest price in the set and delivers a mid-table score for it.
Notes
Breakpoint pricing at 272K tokens (doubles to $10/$45 above threshold)
Recent forecasts