GPT-5.5
Dynamic pricingReasoningOpenAI
Frontier GPT-5.x model for complex professional workloads.
- Input
- $1.50
- per 1M tokens
- Output
- $9.00
- per 1M tokens
- Context window
- 1.05M
- tokens
- Max output
- 128K
- tokens
Pricing
Prices are in USD per 1M tokens. Cached input is billed at the cache read price.
- Input
- $1.50/ 1M
- Output
- $9.00/ 1M
- Cache read
- $0.15/ 1M
Tiered prices
Price depends on prompt length or time of day. Every tier is listed below.
| Applies to | Input | Output | Cache read |
|---|---|---|---|
| Prompts up to 272K tokens | $1.50 | $9.00 | $0.15 |
| Prompts over 272K tokens | $3.00 | $13.50 | $0.30 |
Use it from code
The samples read your key from the ORYNX_API_KEY environment variable.
curl https://api.orynx.dev/v1/responses \
-H "Authorization: Bearer $ORYNX_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.5",
"input": "Explain what an API gateway does in one sentence."
}'Use it in your tools
Minimal configuration for popular coding agents. Replace sk-orynx-... with your key.
Codex CLI
Full guide~/.codex/config.toml
model = "gpt-5.5"
model_provider = "orynx"
[model_providers.orynx]
name = "ORYNX"
base_url = "https://api.orynx.dev/v1"
env_key = "ORYNX_API_KEY"
wire_api = "responses"OpenCode
Full guideopencode.json
{
"$schema": "https://opencode.ai/config.json",
"provider": {
"orynx": {
"npm": "@ai-sdk/openai",
"name": "ORYNX",
"options": {
"baseURL": "https://api.orynx.dev/v1",
"apiKey": "{env:ORYNX_API_KEY}"
},
"models": {
"gpt-5.5": {
"name": "GPT-5.5",
"limit": {
"context": 1050000,
"output": 128000
}
}
}
}
}
}More from GPT
GPT-6 AstraDynamic pricing
gpt-6-astraOpenAI's flagship for demanding end-to-end work and deep reasoning.
- Input
- $3.00/ 1M
- Output
- $15.00/ 1M
OpenAI ResponsesOpenAI Chat1.05M ctx
GPT-5.6 SolDynamic pricing
gpt-5.6-solFlagship of the GPT-5.6 series for complex reasoning and coding.
- Input
- $1.20/ 1M
- Output
- $6.00/ 1M
OpenAI ResponsesOpenAI Chat1.05M ctx
GPT-5.6 TerraDynamic pricing
gpt-5.6-terraBalanced GPT-5.6 model between Sol and Luna.
- Input
- $0.60/ 1M
- Output
- $3.60/ 1M
OpenAI ResponsesOpenAI Chat1.05M ctx
