Calculate the cost of using gpt-oss-20b from OpenRouter for your AI applications
Pricing data last updated:
Mode: Chat
Max: 131,072 tokens
Max: 32,768 tokens
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gpt-oss-20b is a chat model from OpenRouter, one of 504 chat models they offer. It is priced at $0.02 per 1M input tokens and $0.09 per 1M output tokens, ranking 19 out of 3781 chat models by cost and cheaper than 99% of models in this category. gpt-oss-20b supports function calling, reasoning, prompt caching, structured output. It accepts up to 131K input tokens.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 131,072 input tokens. The maximum output length is 32,768 tokens.
At $0.02 per 1M input tokens and $0.09 per 1M output tokens, gpt-oss-20b ranks 19 out of 3781 chat models by input cost. It is more affordable compared to the median of $0.60 for chat models, and is cheaper than 99% of models in this category.
gpt-oss-20b is one of 504 OpenRouter chat models, with support for function calling, reasoning, prompt caching, structured output.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs gpt-oss-20b |
|---|---|---|---|---|
| doubao-seed-2-0-mini | Aihubmix | $0.03 | $0.30 | +67% |
| gemma-4-E4B-it | DeepInfra | $0.02 | $0.10 | +11% |
| amazon.nova-micro-v1:0 | AWS Bedrock | $0.04 | $0.14 | +94% |
Similar chat models from other providers
Yes. gpt-oss-20b costs $0.02 per 1M input tokens compared to doubao-seed-2-0-mini's $0.03 per 1M input tokens, making it 67% more affordable. Both are chat models and share support for vision, function calling, reasoning, web search, prompt caching, structured output.
gpt-oss-20b input pricing is $0.02 per 1M tokens, which is 97% below the median of $0.60 for chat models. It ranks 19 out of 3781 chat models by input cost, making it cheaper than 99% of models in this category. For output, it costs $0.09 per 1M tokens compared to the median of $1.75.
Among OpenRouter's 504 chat models, gpt-oss-20b ranks 3 by input cost.
The most comparable chat models to gpt-oss-20b are: doubao-seed-2-0-mini from Aihubmix ($0.03/1M input tokens); gemma-4-E4B-it from DeepInfra ($0.02/1M input tokens); amazon.nova-micro-v1:0 from AWS Bedrock ($0.04/1M input tokens); deepseek-v4.1-flash-fast from Coralbricks ($0.01/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
You can monitor OpenRouter service health in real time on the Bifrost OpenRouter Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.
gpt-oss-20b is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $0.02 and generating 1M output tokens costs $0.09.