- 1M context
- Responses API
GPT-5.6 Terra on QuickSilver Pro
GPT-5.6 Terra through one OpenAI-compatible API. Supported features: text input, text output, streaming, tool calling and JSON Schema.
- 1M context
- 131K max output
- Tools
- Streaming
- JSON Schema output
You pay · input / output per 1M
$1.60 / $9.60
OpenAI list source: openai.com/api/pricing
At a glance
- Context
- 1M tokens
- Input / 1M
- $1.60
- Output / 1M
- $9.60
- Thinks by default
- No
- Max output
- 131K
- Latency · live
- —
- AA Intelligence Index
- 47
Balanced everyday GPT-5.6 workloads.
When is GPT-5.6 Terra the right call?
Curated from catalog capabilities and published prices, not a benchmark.
When to use
Use GPT-5.6 Terra when your application needs these capabilities: text input, text output, streaming, tool calling and JSON Schema.
- Long documents and codebases, up to 1M tokens of context
- Agents that call tools, with strict JSON Schema output
- Responses API clients as well as Chat Completions
When to use something else
Choose a different model if your workflow requires capabilities beyond those listed here. Test your workload before committing to a model.
- Output price matters mostGPT-5.6 Sol costs 0.833× this model’s output price and keeps the 1M context.GPT-5.6 Sol $1.60 / $8.00 · 1M
- The task needs a stronger modelGPT-6 Astra scores 55 on the AA Intelligence Index (47 here), at 5.208× the output price.GPT-6 Astra $10.00 / $50.00 · 1M
- You need image inputGPT-6.1 Sol accepts image input, at 1.042× the output price.GPT-6.1 Sol $2.00 / $10.00 · 1M
Quickstart (curl)
Get an API key →curl https://api.quicksilverpro.io/v1/chat/completions \
-H "Authorization: Bearer $QSP_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-terra",
"messages": [{"role": "user", "content": "Hello!"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.quicksilverpro.io/v1",
api_key=os.environ["QSP_KEY"],
)
response = client.chat.completions.create(
model="gpt-5.6-terra",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.quicksilverpro.io/v1",
apiKey: process.env.QSP_KEY,
});
const response = await client.chat.completions.create({
model: "gpt-5.6-terra",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);curl https://api.quicksilverpro.io/v1/responses \
-H "Authorization: Bearer $QSP_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-terra",
"input": "Hello!"
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.quicksilverpro.io/v1",
api_key=os.environ["QSP_KEY"],
)
response = client.chat.completions.create(
model="gpt-5.6-terra",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)OpenAI-compatible. One-line migration via base_url.
Gateway behavior
Compatibility notes for this model.
prompt- Prompts up to 1M tokens.
max_tokens- Up to 131K output tokens.
- /v1/chat/completions: Supported
- /v1/responses: Supported
- streaming: Supported
- tools: Supported
- image input: Not listed for this model
- JSON Schema: Supported
- reasoning: Not listed for this model
Where the price comes from
- Provider reference
- $2.00 / $12.00openai.com/api/pricing
- Catalog verified
- Prompt cache · not compared
- $0.16 read · $2.00 5m write
usage.cost = prompt_tokens × $1.60/1M + completion_tokens × $9.60/1M
FAQ
Common questions
$1.60 input / $9.60 output per million tokens.
1M context tokens and up to 131K output tokens. Input and output must fit within the context window.
APIs: Chat Completions and Responses. Capabilities: text input, text output, streaming, tool calling and JSON Schema. Use model="gpt-5.6-terra" with base_url=https://api.quicksilverpro.io/v1.