openrouter/openai/gpt-5

Openrouter text

openrouter/openai/gpt-5

Input

$1.25

per 1M input tokens

Output

$10.00

per 1M output tokens

Cache read

$0.1250

per 1M cached read tokens

Cache write

n/a

per 1M cache write tokens

Context window

400,000

Max output

128,000

Effective date

Sep 18, 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)
$2.20 $3.02 $3.85 $4.68 Jun 15, 2026: $3.44 Sep 18, 2026: $3.44 Jun 15, 2026 Sep 18, 2026
Effective Input Output Blended
Sep 18, 2026 $1.25 $10.00 $3.44
Jun 15, 2026 $1.25 $10.00 $3.44

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