gpt-5.5-pro-2026-04-23

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gpt-5.5-pro-2026-04-23

Input

$30.00

per 1M input tokens

Output

$180.00

per 1M output tokens

Cache read

n/a

per 1M cached read tokens

Cache write

n/a

per 1M cache write tokens

Context window

1,050,000

Max output

128,000

Effective date

Sep 13, 2026

Estimate a workload

Enter token counts to see the cost at this model's rates.

Estimated cost: $0.00

Price history

blended $ per 1M tokens (3:1)
$66.3 $67.1 $67.9 $68.7 Jun 15, 2026: $67.5 Sep 13, 2026: $67.5 Jun 15, 2026 Sep 13, 2026
Effective Input Output Blended
Sep 13, 2026 $30.00 $180.00 $67.50
Jun 15, 2026 $30.00 $180.00 $67.50

Source: litellm. Confirm against the provider's official pricing before relying on these figures.