GPT 5.5 Pro 2026 04 23 API
OpenAI's GPT 5.5 Pro 2026 04 23, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.
- Providers compete for each request. The exchange ranks the offers that meet your rules by estimated charge. It fixes your maximum charge before the first token, and you pay for the tokens that the model uses.
- The OpenAI and Anthropic APIs. Use the OpenAI or Anthropic SDK that you have. Set the base URL and your key, and send gpt-5.5-pro-2026-04-23 as the model.
- Your data rules. Send x-liquid-retention: none and only offers whose provider does not keep your content compete for the request.
Facts
- Model name
- gpt-5.5-pro-2026-04-23
- Maker
- OpenAI
- Context window
- 272K tokens
- Input price
- $29.984 per million tokens
- Output price
- $179.901 per million tokens
- Providers
- 1 independent provider
- Regions
- us
Providers
- Architect: us, $29.984 input and $179.901 output per million tokens, $29.984 cache read per million tokens, 272K tokens of context
Request
curl https://router.inference.ai.exchange/v1/chat/completions \
-H "Authorization: Bearer $LIQUID_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.5-pro-2026-04-23",
"messages": [{"role":"user","content":"Say hello."}]
}'Questions
- What is GPT 5.5 Pro 2026 04 23?
- GPT 5.5 Pro 2026 04 23 is a model from OpenAI.
- How much does GPT 5.5 Pro 2026 04 23 cost?
- Offers now ask $29.984 per million input tokens and $179.901 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.
- What is the context length of GPT 5.5 Pro 2026 04 23?
- The largest offer takes 272,000 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
- What can GPT 5.5 Pro 2026 04 23 do?
- Its providers list Documents, Vision, Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.
- What inputs and outputs does GPT 5.5 Pro 2026 04 23 support?
- Text · Files · Images → Text.
- Which providers serve GPT 5.5 Pro 2026 04 23?
- 1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.
- How do I call GPT 5.5 Pro 2026 04 23?
- Send "gpt-5.5-pro-2026-04-23" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
- When was GPT 5.5 Pro 2026 04 23 listed?
- The exchange first listed it on 10/10/2026. This is not its release date.