---
source: https://autoadify.com/ai-models/gpt-oss-120b
title: "GPT-OSS 120B for social media"
---

# GPT-OSS 120B for social media

> OpenAI's open-weight 120B model, priced at a single credit. A capable writer for the steady churn of social copy — captions, alt text, post variants — when cost per run is what matters.

GPT-OSS 120B is one of 90+ AI models in Autoadify, the AI agent for social media. No OpenAI account or API key is needed: every model is in one subscription, chosen per generation — by asking the AI agent, in a social media AI workflow step, or in AI Studio.

- **Lab:** OpenAI
- **What it is:** OpenAI open-weight 120B — cheapest capable writer
- **Best for:** Budget
- **Available on:** every plan, including Free
- **Cost band:** Low, relative to its own type

## What to make with GPT-OSS 120B

- **Daily posting on autopilot** (Instagram, Facebook, X): Run it in an AI Workflow every day without the cost adding up.
- **Variants to test** (Instagram, TikTok, X): Many versions of the same post, so the best one goes out.

**Pick it when:** You need decent short copy in bulk at the lowest price.

**Try GPT-6 Luna instead** for a newer GPT generation at a similar price.

## Character limits it writes to

Autoadify writes each platform's version to that platform's limit. The number that matters most is often the preview: the part shown before "more".

| Platform | Spec | Note |
| --- | --- | --- |
| X / Twitter | 280 characters | No preview cut — the whole post shows. |
| Instagram | 2,200 characters | About 125 show before the cut (truncated in feed). |
| LinkedIn | 3,000 characters | About 210 show before the cut (truncated in feed). |
| TikTok | 2,200 characters | About 100 show before the cut (truncated in feed). |
| YouTube | 5,000 characters | About 157 show before the cut (truncated in search). |
| Facebook | 63,206 characters | About 480 show before the cut (truncated in feed). |

## Alternatives

- [GPT-6 Luna Pro](https://autoadify.com/ai-models/gpt-6-luna-pro): GPT-6 Luna, stronger reasoning — still low-cost
- [GPT-6 Luna](https://autoadify.com/ai-models/gpt-6-luna): Fast, low-cost GPT-6 — 1M context
- [GPT-5.6 Luna](https://autoadify.com/ai-models/gpt-5-6-luna): Fast, low-cost GPT-5.6 — 1M context
- [GPT-5.4 Mini](https://autoadify.com/ai-models/gpt-5-4-mini): Fast, lower-cost GPT-5.4

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_Source: https://autoadify.com/ai-models/gpt-oss-120b_