Calculate the cost of using deepseek-v4.1-flash-fast from Refuseless for your AI applications
Pricing data last updated:
Mode: Chat
Max: 1,048,576 tokens
Max: 262,144 tokens
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deepseek-v4.1-flash-fast is a chat model from Refuseless, one of 5 chat models they offer. It is priced at $0.05 per 1M input tokens and $0.15 per 1M output tokens, ranking 178 out of 4040 chat models by cost and cheaper than 95% of models in this category. deepseek-v4.1-flash-fast supports function calling, reasoning, prompt caching, structured output. Its 1,049K-token context window is in the top 15% among chat models.
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 1,048,576 input tokens. The maximum output length is 262,144 tokens.
At $0.05 per 1M input tokens and $0.15 per 1M output tokens, deepseek-v4.1-flash-fast ranks 178 out of 4040 chat models by input cost. It is more affordable compared to the median of $0.60 for chat models, and is cheaper than 95% of models in this category.
deepseek-v4.1-flash-fast is one of 5 Refuseless chat models, with support for function calling, reasoning, prompt caching, structured output. its 1,049K-token context window places it in the top 15% of chat models.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs deepseek-v4.1-flash-fast |
|---|---|---|---|---|
| gpt-5-nano-2025-08-07 | Azure | $0.06 | $0.44 | +10% |
| gpt-5-nano | Azure | $0.05 | $0.40 | 0% |
| gpt-oss-120b | Sail | $0.06 | $0.40 | +20% |
Similar chat models from other providers
Yes. deepseek-v4.1-flash-fast costs $0.05 per 1M input tokens compared to gpt-5-nano-2025-08-07's $0.06 per 1M input tokens, making it 10% more affordable. Both are chat models and share support for vision, function calling, reasoning, prompt caching, structured output.
deepseek-v4.1-flash-fast input pricing is $0.05 per 1M tokens, which is 92% below the median of $0.60 for chat models. It ranks 178 out of 4040 chat models by input cost, making it cheaper than 95% of models in this category. For output, it costs $0.15 per 1M tokens compared to the median of $1.80.
Among Refuseless's 5 chat models, deepseek-v4.1-flash-fast ranks 1 by input cost.
The most comparable chat models to deepseek-v4.1-flash-fast are: gpt-5-nano-2025-08-07 from Azure ($0.06/1M input tokens); gpt-5-nano from Azure ($0.05/1M input tokens); gpt-oss-120b from Sail ($0.06/1M input tokens); Qwen3.6-35B-A3B from Sail ($0.05/1M 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.
deepseek-v4.1-flash-fast supports up to 1,048,576 input tokens, placing it in the top 15% of chat models by context window size (rank 391 of 3774). This makes it suitable for processing long documents, extensive code repositories, or maintaining detailed conversation histories.
deepseek-v4.1-flash-fast 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 $0.05 and generating 1M output tokens costs $0.15.