Context Window
131,072
Tokens
Model Cost Profile
OpenAI: gpt-oss-20b (free)
Developer: openai
Pricing updated Mar 11, 2026
Input rank: #18Output rank: #18
OpenAI's gpt-oss-20b model offers a substantial context window of 131,072 tokens, making it suitable for applications that require extensive text generation and understanding, such as document summarization and long-form content creation. As a free API model, it allows teams to experiment with large-scale projects without incurring input or output costs, enabling cost-effective development and testing of AI-driven solutions. This model is ideal for organizations looking to leverage advanced natural language processing capabilities while maintaining budget constraints.
🔧 Tool Calling🧠 Reasoning
Input Price / 1M
$0.0000
Prompt tokens
Output Price / 1M
$0.0000
Completion tokens
Intelligence (MMLU)
Benchmark Pending
Massive Multitask Language Understanding
Side-by-Side Pricing Table
| Usage Type | Price / 1M Tokens |
|---|---|
| Input (Prompt) | $0.0000 |
| Output (Completion) | $0.0000 |
Price History
OpenAI: gpt-oss-20b (free) Pricing Trend
Input / 1M tokensOutput / 1M tokens
Mar 7 — Mar 11
Current Input / 1M
$0.000000
Current Output / 1M
$0.000000
Cost Calculator
Estimate monthly spend for OpenAI: gpt-oss-20b (free) based on your workload.
01.0B
0500M
Estimated Monthly Cost
$0.00
25M input + 12M output tokens
Cheaper Alternatives to Compare
Quick links for cost-down decisions before production rollout.
FAQ
Common pricing and benchmark questions for OpenAI: gpt-oss-20b (free).
How much does OpenAI: gpt-oss-20b (free) cost per 1M input tokens?
OpenAI: gpt-oss-20b (free) input pricing is $0.0000 per 1M tokens based on the latest synced provider data.
How much does OpenAI: gpt-oss-20b (free) cost per 1M output tokens?
OpenAI: gpt-oss-20b (free) output pricing is $0.0000 per 1M tokens based on the latest synced provider data.
What context window does OpenAI: gpt-oss-20b (free) support?
OpenAI: gpt-oss-20b (free) supports a context window of 131,072 tokens.
How can I compare OpenAI: gpt-oss-20b (free) with cheaper alternatives?
Use the comparison links on this page to open direct model-vs-model pricing and benchmark pages, then evaluate monthly spend projections for your workload.