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OpenAI: GPT-5.5 (batch) API Pricing

OpenAI: GPT-5.5 (batch) is an API model from openai. It costs $2.5 per 1M input tokens and $15 per 1M output tokens, with cached input at $0.25. Its context window is 1,050,000 tokens with up to 128,000 output tokens. A workload of 10M input + 2M output tokens costs about $55 per month.
Input
$2.5
per 1M tokens
Output
$15
per 1M tokens
Cached input
$0.25
per 1M tokens
Context window
1.05M
1,050,000 tokens
Blended (80/20)
$5
per 1M tokens

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...

How much does OpenAI: GPT-5.5 (batch) cost for a real workload?

At 10M input + 2M output tokens per month, OpenAI: GPT-5.5 (batch) costs about $55 ($25 input + $30 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to OpenAI: GPT-5.5 (batch)?

Compare OpenAI: GPT-5.5 (batch) with other models

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Frequently asked questions

How much does OpenAI: GPT-5.5 (batch) cost?

OpenAI: GPT-5.5 (batch) costs $2.5 per 1M input tokens and $15 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $55.

What is the context window of OpenAI: GPT-5.5 (batch)?

OpenAI: GPT-5.5 (batch) has a context window of 1,050,000 tokens and can return up to 128,000 output tokens per response.

What are cheaper alternatives to OpenAI: GPT-5.5 (batch)?

Cheaper models include MoonshotAI: Kimi Latest ($0.238 in / $16 out), Qwen: Qwen3.8 Max Prime ($4 in / $12 out), OpenAI: GPT-5.3-Codex ($1.75 in / $14 out). See the full list on this page.

Is OpenAI: GPT-5.5 (batch) free to use?

No. OpenAI: GPT-5.5 (batch) is a paid model at $2.5 input / $15 output per 1M tokens. 20 free models are listed on the free models page.

Provider: openai · Model ID: openai/gpt-5.5:batch · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices