GPT-OSS 120B API Pricing
GPT-OSS 120B costs $0.15 per 1M input tokens and $0.60 per 1M output tokens. These rates were last verified on .
Published rates and billing units
| Billing dimension | USD list price |
|---|---|
| Input / 1M tokens | $0.15 |
| Output / 1M tokens | $0.60 |
Verified 2026-11-12 · Official source · Pricing methodology. Taxes, optional services and account-specific discounts are not included.
Cost examples
These examples use published list prices only. They exclude taxes, enterprise discounts, minimum charges, retries, batch discounts, and provider-specific billing rules.
1M input + 1M output
$0.75
A direct per-million comparison against every other text model.
100K input + 25K output
$0.03
A compact chat, summarization, or analysis workload.
10M input + 2M output
$2.70
A monthly production estimate for heavier RAG or agent traffic.
75% cached input + 250K output
Not listed
Together AI does not publish a cached-input rate for this model in our dataset.
Calculator for GPT-OSS 120B
Enter your own input, output, and cached-token assumptions. This calculator is preloaded with only GPT-OSS 120B, so the result stays focused on this model.
Input cost
$0.15
Output cost
$0.60
Total
$0.75
Price history
No list-price movement across 193 daily snapshots from 2026-05-02 to 2026-11-11.
When to use GPT-OSS 120B
Good fit
- high-volume routing, classification, extraction, summaries, and fallback traffic
Be careful with
- decisions that depend on unpublished context-window limits without checking the provider docs first