OpenAI: gpt-oss-20b API pricing
Token pricing
| Model | Provider | Input / 1M | Output / 1M | Context | Modalities |
|---|---|---|---|---|---|
| OpenAI: gpt-oss-20b | OpenAI | $0.03 | $0.13 | 131,072 (131K) | texttext |
Capabilities
Context window
131,072 (131K)
Max output
131,072 (131K)
Input modalities
text
Output modalities
text
Supported parameters
frequency_penalty
include_reasoning
logit_bias
logprobs
max_tokens
min_p
presence_penalty
reasoning
reasoning_effort
repetition_penalty
response_format
seed
stop
structured_outputs
temperature
tool_choice
tools
top_k
top_logprobs
top_p
Similar models
| Model | Input / 1M | Output / 1M | Context | Modalities |
|---|---|---|---|---|
| OpenAI: GPT-5 Nano (batch) | $0.025 | $0.20 | 400,000 (400K) | text, image, filetext |
| OpenAI: gpt-oss-120b | $0.037 | $0.17 | 131,072 (131K) | texttext |
| OpenAI: GPT-4.1 Nano (batch) | $0.05 | $0.20 | 1,047,576 (1M) | image, text, filetext |
| OpenAI: GPT-5 Nano | $0.05 | $0.40 | 400,000 (400K) | text, image, filetext |
| OpenAI: gpt-oss-20b (free) | $0 | $0 | 131,072 (131K) | texttext |
| OpenAI: gpt-oss-safeguard-20b | $0.075 | $0.30 | 131,072 (131K) | texttext |
| OpenAI: GPT-4o-mini (batch) | $0.075 | $0.30 | 128,000 (128K) | text, image, filetext |
| OpenAI: GPT-4.1 Nano | $0.10 | $0.40 | 1,047,576 (1M) | image, text, filetext |