OpenAI: GPT-5.5 API pricing
Token pricing
| Model | Provider | Input / 1M | Output / 1M | Context | Modalities |
|---|---|---|---|---|---|
| OpenAI: GPT-5.5 | OpenAI | $5.00 | $30.00 | 1,050,000 (1.1M) | file, image, texttext |
Capabilities
Context window
1,050,000 (1.1M)
Max output
128,000 (128K)
Input modalities
file, image, text
Output modalities
text
Supported parameters
include_reasoning
max_completion_tokens
max_tokens
reasoning
response_format
seed
structured_outputs
tool_choice
tools
Similar models
| Model | Input / 1M | Output / 1M | Context | Modalities |
|---|---|---|---|---|
| OpenAI GPT Latest | $5.00 | $30.00 | 1,050,000 (1.1M) | file, image, texttext |
| OpenAI: GPT Chat Latest | $5.00 | $30.00 | 400,000 (400K) | text, image, filetext |
| OpenAI: GPT-4o (2024-05-13) | $5.00 | $15.00 | 128,000 (128K) | text, image, filetext |
| OpenAI: GPT-3.5 Turbo 16k | $3.00 | $4.00 | 16,385 (16K) | texttext |
| OpenAI: GPT-5.4 | $2.50 | $15.00 | 1,050,000 (1.1M) | text, image, filetext |
| OpenAI: GPT Audio | $2.50 | $10.00 | 128,000 (128K) | text, audiotext, audio |
| OpenAI: GPT-4o | $2.50 | $10.00 | 128,000 (128K) | text, image, filetext |
| OpenAI: GPT-4o (2024-08-06) | $2.50 | $10.00 | 128,000 (128K) | text, image, filetext |