# Seed 1.6

> Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

**ID**: `bytedance-seed/seed-1.6`  
**Creator**: bytedance-seed  
**Category**: multimodal  
**Context**: 262K tokens  
**Pricing**: $0.36 / $2.89 per 1M · billed by your provider (BYOK)  
**Released**: 2025-12-23  
**Web page**: https://anyrouter.dev/model/bytedance-seed/seed-1.6

**Input modalities**: image, text, video  
**Output modalities**: text  

**Capabilities**: chat, reasoning, streaming, function-calling, vision

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/chat/completions`

```bash
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "bytedance-seed/seed-1.6",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| fluence-byok | $0.36/M (list) | $2.89/M (list) |

BYOK routes are billed by your own provider key — AnyRouter charges $0. Rates marked (list) are the provider's published list price.

## Source

- Upstream docs: https://openrouter.ai/bytedance-seed/seed-1.6