Sources & verification notes

DeepSeek V4 Flash 0731

• Exact identifier & access

  Identity and lifecycle apply to this exact identifier and serving surface.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• First availability

  Effective Jul 31, 2026. Checked Oct 1, 2026.

  • Change Log ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Availability status

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  The repository is listed in the deepseek-ai Hugging Face organization and downloadable as of 2026-10-01.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Capabilities & limits

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  The card states no context length; the figure is max_position_embeddings in the repository's config.json. (The V4-Flash preview card states 1M.) The card recommends 'a maximum output length of 384K tokens' for the high and max reasoning effort levels. Tool calling is documented in the repository's encoding/README.md (DSML tool-call format). The card documents no JSON or structured-output mode. Image input: text-only per the card.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Input price

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  Downloadable weights; no managed API price applies.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Output price

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  Downloadable weights; no managed API price applies.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Reference price

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  OpenRouter's listed price for deepseek/deepseek-v4-flash-0731 (https://openrouter.ai/deepseek/deepseek-v4-flash-0731), which OpenRouter maps to this Hugging Face repo. USD per million tokens; a host's price, not the developer's.

  • OpenRouter models API ↗OpenRouter · host-authored · checked Oct 1, 2026

• Model card

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Official announcement

  Effective Jul 31, 2026. Checked Oct 1, 2026.

  • Change Log ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Provider description

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026

• Provider comparison

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  • Change Log ↗DeepSeek · provider-authored · checked Oct 1, 2026

• License

  Effective date not established; this is an observation. Checked Oct 1, 2026.

  • deepseek-ai/DeepSeek-V4-Flash-0731 model card ↗DeepSeek · provider-authored · checked Oct 1, 2026