Skip to contentx402 is live on Robinhood Chain: agents can now pay for any model, per call, in USDG →
OmniRail
← All models

DeepSeek · Language model

DeepSeek V4 Flash Vision Exp

deepseek/deepseek-v4-flash-vision-exp
  • Language
Released Aug 21, 2026

DeepSeek V4 Flash Vision Exp is an experimental vision-enabled version of [DeepSeek V4 Flash 0731](https://openrouter.ai/deepseek/deepseek-v4-flash-0731) from DeepSeek, adding image understanding while matching the base model on text capabilities including agents,...

Specifications

Context window
1,048,576 tokens
Max output
943,717 tokens
Input
text, image
Output
text
Reasoning effort
max, high, low
Tokenizer
DeepSeek

Supported parameters

Accepted by the model and forwarded as-is by the gateway.

  • frequency_penalty
  • logit_bias
  • logprobs
  • max_tokens
  • min_p
  • presence_penalty
  • reasoning
  • reasoning_effort
  • repetition_penalty
  • response_format
  • seed
  • stop
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_k
  • top_logprobs
  • top_p

Use it

POST /api/v1/chat/completions · MCP chat · full reference

curl https://omnirail.org/api/v1/chat/completions \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"deepseek/deepseek-v4-flash-vision-exp","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'