DeepSeek
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash supports text and image input, reasoning, tool calling, and structured output with a 1M-token context window. This is a rate-limited beta with limited capacity, intended for testing rather than production use. Assume prompts and responses are logged by the provider and may be used for model training or service improvement. Do not send sensitive or confidential data.
Model facts
- Context window
- 1M tokens
- Maximum output
- 384K tokens
- Cheapest paid input
- $0.156 per 1M tokens
- Cheapest paid output
- $0.312 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, structured output, attachments, text, image.
Observed price history
- 2026-09-08: $0.156 input / $0.312 output per 1M tokens
API providers
- NanoGPT — model id deepseek/deepseek-v4.1-flash; $0.156 input / $0.312 output per 1M tokens; provider documentation