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Description
Palmyra X5 is Writer's large language model with a 1 million token context window.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.6/$6.00
$5.00/$30.00
Input /1M
$0.6
$5.00
Output /1M
$6.00
$30.00
Cached in /1M
—
$0.5
Context
1.04M
1M
Δ input since launch
—
—
Δ output since launch
—
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Released
Jan 2026
Apr 2026
Status
—
—
Provider
W
Writer
OpenAI