GPT-5.6-sol API model

Reference for gpt-5.6-sol on InferGate: exact request ID, response validation, streaming behavior and account access troubleshooting.

Use gpt-5.6-sol as the exact request identifier. This is one of two separately addressable GPT-5.6 variants; the suffix is part of the model ID. Non-streaming and streaming Responses requests passed the production catalog acceptance on September 11, 2026.

Request this model

curl --fail-with-body https://api.useinfergate.com/v1/responses \
  -H "Authorization: Bearer $INFERGATE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-5.6-sol","input":"Reply with one sentence about API design.","max_output_tokens":256}'

Choose deliberately

Compare sol and terra with your own evaluation set. No benchmark, context-window or speed advantage is asserted here. Confirm required parameters using a small representative request.

Check access before sending requests

Use your own InferGate key to request the live catalog. Account permissions, key restrictions and available balance still apply. A model listed here is not a guarantee of uninterrupted upstream service.

curl --fail-with-body https://api.useinfergate.com/v1/models \
  -H "Authorization: Bearer $INFERGATE_API_KEY"

Retired model requests return model_not_available. InferGate does not silently substitute another model. Keep keys on your server and out of browser bundles.

Prepaid usage and costs

API usage consumes available account credit. Review current input and output rates in application pricing before running a workload. This page does not promise free requests or a fixed discount. See how prepaid pricing works and compare actual usage logs after a small test.

GPT-5.6 Sol request reference

SettingValueWhat to verify
Modelgpt-5.6-solKeep the full identifier, including any suffix
Base URLhttps://api.useinfergate.com/v1Use the API host, not the website
EndpointPOST /responsesResponses-format input and output
ModesComplete response or stream=trueRequire completed output in either mode

Frequently asked questions

Which identifier should I send for GPT-5.6 Sol?

Send gpt-5.6-sol exactly. Use the same API key to check GET /v1/models before requesting this model. Display labels and family names are not replacements for the request ID.

Why can a published model be unavailable to my key?

The website describes the public catalog. Your account group, API key model restrictions and balance can affect a specific request. Inspect the actual error and authenticated list before retrying.

Is sol faster or more accurate than terra?

No comparative speed or accuracy claim is established here. Compare both variants on the same representative prompts and current rates; model suffixes are not benchmark results.

How do I verify a streamed response?

Require the completion event and useful text. Preserve the request ID and actual model identity. A connection that ends before completion is not a successful result merely because HTTP status was 200.

Continue your integration

Review prepaid pricing · Read API documentation · Get Started

Start with a small request

Create an InferGate account Read API documentation

Explore the API

OpenAI-compatible APIMulti-model APIAI API gateway