gpt-5.4 API pricing
Blended at 3:1 input to output: $5.63 per million tokens.
OpenAI charges $2.50 per million input tokens and $15.00 per million output tokens. 2 of the models nearest it in price are cheaper on a blended basis.
Against the models nearest in price
Blended at a 3:1 input to output ratio.
| Source | ||||||
|---|---|---|---|---|---|---|
| gpt-5.4 This model | OpenAI | $2.50 | $15.00 | 1,050,000 | $5.63 | ↗ |
| claude-sonnet-4 | OpenRouter | $3.00 | $15.00 | 1,000,000 | $6.00 | ↗ |
| claude-sonnet-4-5 | Anthropic | $3.00 | $15.00 | 200,000 | $6.00 | ↗ |
| claude-sonnet-4-6 | Anthropic | $3.00 | $15.00 | 1,000,000 | $6.00 | ↗ |
| mistral-large-2402 | Mistral AI | $4.00 | $12.00 | 32,000 | $6.00 | ↗ |
| claude-sonnet-4.5 | OpenRouter | $3.00 | $15.00 | 200,000 | $6.00 | ↗ |
| claude-sonnet-4.6 | OpenRouter | $3.00 | $15.00 | 1,000,000 | $6.00 | ↗ |
| gpt-5.2 | OpenAI | $1.75 | $14.00 | 272,000 | $4.81 | ↗ |
| gpt-5.2-chat | OpenRouter | $1.75 | $14.00 | 128,000 | $4.81 | ↗ |
Last checked . Methodology
Questions
How much does gpt-5.4 cost per million tokens?
$2.50 per million input tokens and $15.00 per million output tokens, with cached input at $0.250. At a 3:1 input to output mix that blends to $5.63. Checked 12 Sept 2026.
What would gpt-5.4 cost for a real workload?
A thousand requests a day at 2,000 input and 600 output tokens each comes to $420.00 a month.
What is the context window for gpt-5.4?
1,050,000 tokens of input, with up to 128,000 tokens of output.
claude-sonnet-4 · claude-sonnet-4-5 · claude-sonnet-4-6 · mistral-large-2402 · claude-sonnet-4.5 · All OpenAI models · Cost calculator