Calculate the cost of using gpt-oss-120b from Fireworks AI for your AI applications
Pricing data last updated:
Mode: Chat
Max: 131,072 tokens
Max: 32,768 tokens
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gpt-oss-120b is a chat model from Fireworks AI, one of 298 chat models they offer. It is priced at $0.15 per 1M input tokens and $0.60 per 1M output tokens, ranking 673 out of 3501 chat models by cost and cheaper than 78% of models in this category. gpt-oss-120b 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 $0.15 per 1M input tokens and $0.60 per 1M output tokens, gpt-oss-120b ranks 673 out of 3501 chat models by input cost. It is more affordable compared to the median of $0.60 for chat models, and is cheaper than 78% of models in this category.
gpt-oss-120b is one of 298 Fireworks AI chat models, with support for function calling, reasoning, prompt caching, structured output.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs gpt-oss-120b |
|---|---|---|---|---|
| qwen3.8-flash | Dashscope | $0.15 | $0.47 | 0% |
| qwen3.8-omni-flash | Dashscope | $0.15 | $0.47 | 0% |
| qwen3.8-flash | Qwen Ai Platform | $0.15 | $0.47 | 0% |
Similar chat models from other providers
No. gpt-oss-120b costs $0.15 per 1M input tokens while qwen3.8-flash costs $0.15 per 1M input tokens, making qwen3.8-flash 0% more affordable for input. However, gpt-oss-120b may offer different capabilities or performance characteristics that justify the price difference.
gpt-oss-120b input pricing is $0.15 per 1M tokens, which is 75% below the median of $0.60 for chat models. It ranks 673 out of 3501 chat models by input cost, making it cheaper than 78% of models in this category. For output, it costs $0.60 per 1M tokens compared to the median of $1.71.
Among Fireworks AI's 298 chat models, gpt-oss-120b ranks 45 by input cost.
The most comparable chat models to gpt-oss-120b are: qwen3.8-flash from Dashscope ($0.15/1M input tokens); qwen3.8-omni-flash from Dashscope ($0.15/1M input tokens); qwen3.8-flash from Qwen Ai Platform ($0.15/1M input tokens); qwen3.8-omni-flash from Qwen Ai Platform ($0.15/1M 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.
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gpt-oss-120b 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 $0.15 and generating 1M output tokens costs $0.60.