Seed 1.6 Flash API

Seed 1.6 Flash on AIMLAPI.

Modalities
Image, TextText
In / Out price
$0.0794/$0.3174per 1M
Context window
256K tokens
Released
Dec 23, 2025

Seed 1.6 Flash overview

The pelican test: one prompt, every text model, unedited SVG output from Nov 3, 2026.

SVG of a pelican riding a bicycle, written by Seed 1.6 Flash through AI/ML API

Seed 1.6 Flash specs

Model ID
bytedance-seed/seed-1.6-flash
Developer
ByteDance
Context window
262,144 tokens
Max output
32,768 tokens
Input
Image, Text
Output
Text
API
OpenAI-compatible, base URL https://api.aimlapi.com/v1

Coding and code review
Generate, debug, and review code across languages, reading whole files or repos in a single prompt.

Agentic and multi-step workflows
Reliable tool-calling and instruction-following suit agent loops that plan, call tools, and iterate.

Complex reasoning
Extended reasoning improves reliability on multi-step math, logic, and technical analysis.

Long-document analysis
Summarize and extract from contracts, papers, and reports without aggressive chunking.

Use cases

Real-time chat applications requiring low-latency responses. Interactive image analysis and visual question answering. High-throughput batch processing of multimodal data. Applications where response time is critical to user experience.

Capabilities

  • Function calling
  • Reasoning
  • Streaming
  • Structured outputs
  • Web search

Seed 1.6 Flash API pricing

Seed 1.6 Flash pricing in US dollars
UsagePriceUnit
Input$0.07941M tokens
Output$0.31741M tokens

Prices from the AI/ML API price list, checked on Nov 4, 2026.

Seed 1.6 Flash vs other models: token prices

AI/ML API input and output rates for 5 models, per million tokens.

AI/ML API model prices in USD per million tokens
ModelInputOutput
Seed 1.6 Flash$0.0794$0.3174
Dola-Seed 2.0 Mini$0.1$0.4
Dola-Seed 2.0 Lite$0.25$2
Seed 2.1 Turbo$0.529$2.65
Seed 2.0 Code$0.529$3.17

How to use the Seed 1.6 Flash API

View docs

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/chat/completions' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "bytedance-seed/seed-1.6-flash",
  "messages": [
    {
      "role": "user",
      "content": "Write a haiku about the ocean."
    }
  ]
}'

Related articles

All posts

Seed 1.6 Flash FAQ

What is the context window of Seed 1.6 Flash?

Seed 1.6 Flash has a 262,144 tokens context window and can return up to 32,768 tokens.

What inputs and outputs does Seed 1.6 Flash support?

Seed 1.6 Flash takes image, text as input and returns text.

What is the model ID for Seed 1.6 Flash?

Use bytedance-seed/seed-1.6-flash as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

How much does Seed 1.6 Flash cost?

Seed 1.6 Flash costs $0.0794 input and $0.3174 output per 1M tokens on AI/ML API, billed as you go with no subscription.

Does Seed 1.6 Flash support streaming?

Yes, Seed 1.6 Flash can stream responses as they are generated.

Can Seed 1.6 Flash read images?

Yes, Seed 1.6 Flash accepts image input alongside text.

Who created Seed 1.6 Flash?

Seed 1.6 Flash was built by ByteDance.

Start building with Seed 1.6 Flash

Seed 1.6 Flash API

bytedance-seed/seed-1.6-flash

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/chat/completions' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "bytedance-seed/seed-1.6-flash",
  "messages": [
    {
      "role": "user",
      "content": "Write a haiku about the ocean."
    }
  ]
}'