 Body Builder (beta) |  GPT-5.5 | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenRouter | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 128K tokens | 1.1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens | 128K tokens |
Release Date When this model first became publicly available | December 5, 2025 5 months ago December 5th, 2025 | April 24, 2026 13 days ago April 24th, 2026 |
Body Builder (beta) | GPT-5.5 | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📁File🖼️Image📝Text |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Router | GPT |
Key Features Advanced capabilities | Function CallingStructured OutputReasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
| Body Builder (beta) | GPT-5.5 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $-1000000.0000 per million tokens | $5.00 per million tokens |
Output Token Cost Cost per million outut tokens | $-1000000.0000 per million tokens | $30.00 per million tokens |
| Body Builder (beta) | GPT-5.5 | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
Body Builder (beta) by OpenRouter is a text-based AI model. It can handle standard conversations with its 128K token context window. Premium pricing at $-1000000.0000/M input and $-1000000.0000/M output tokens. Released December 5th, 2025.GPT-5.5 by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1.1M token context window. Premium pricing at $5.00/M input and $30.00/M output tokens. Includes built-in content moderation for safer outputs. Released April 24th, 2026.Compare your models with top performers across different categories
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