Skip to content

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.

Price per tier, per 1M tokens
Applies toInputOutputCache 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 guide
opencode.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
          }
        }
      }
    }
  }
}
GPT-6 AstraDynamic pricing
gpt-6-astra

OpenAI'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-sol

Flagship 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-terra

Balanced GPT-5.6 model between Sol and Luna.

Input
$0.60/ 1M
Output
$3.60/ 1M
OpenAI ResponsesOpenAI Chat1.05M ctx