openai

OpenAI: gpt-oss-20b (batch)

This AI model from OpenAI is designed for text-based input and output. It can handle contexts of up to 131,072 tokens and generate completions of up to 117,964 tokens. The model supports reasoning capabilities but does not provide structured output. For users who prioritize price over performance, this model may be worth considering due to its relatively low input cost ($0.05 per million tokens) compared to its output cost ($0.2 per million tokens). Its blended benchmark score of 25.7 across four independent benchmarks indicates solid performance, but a lower ranking in the AI Index Agentic category suggests it may not excel at more complex tasks; users with specific needs should assess whether this model meets their requirements before making a decision.

Quality Score
81/100
price + capability + benchmarks
Input Price
$0.05
per 1M tokens · checked 2026-09-04
Output Price
$0.20
per 1M tokens · checked 2026-09-04
Context Window
131,072
tokens

Benchmark results

Independent, published benchmarks. Blended score 25.7 across 4 benchmarks, last refreshed 2026-09-04. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 25.1
AI Index Coding software engineering tasks 34.1
AI Index Agentic multi-step tool-using tasks 5.1
EQ-Bench emotional understanding in dialogue 40.7
Model ID
openai/gpt-oss-20b:batch
Vendor
openai
Released
August 2025
Tokenizer
GPT
Input Modalities
text
Output Modalities
text
Max Output
117,964 tokens
Tool Calling
not supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
text only
Audio
no
Moderated
no

What it costs in practice

Computed from the current $0.05/M input and $0.20/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out under $0.01
Classify 1,000 customer emails 500k in / 50k out $0.04
A month of a busy support chatbot 5M in / 2M out $0.65

Similar models

Quick answers

How much does OpenAI: gpt-oss-20b (batch) cost?
$0.05 per million input tokens and $0.20 per million output tokens.
What is OpenAI: gpt-oss-20b (batch)'s context window?
131,072 tokens, roughly 196 pages of text in a single request.
Does OpenAI: gpt-oss-20b (batch) support tool calling?
It supports structured output, a reasoning mode.
Can OpenAI: gpt-oss-20b (batch) process images?
No, it is text-only on the input side.