ByteDance Seed: Seed 1.6 Flash

ByteDance Seed: Seed 1.6 Flash

bytedance-seed · Released Dec 23, 2025 Legacy
Intelligence #412 / 576
27.1 Our Score
Speed
— Not reported
Input #177 / 577
$0.075 per 1M tokens
Output #210 / 577
$0.300 per 1M tokens
Context #108 / 577
262,144 tokens

Analysis Summary

ByteDance Seed 1.6 Flash is a multimodal model supporting text, image, and video input with tool use and function calling across a 262K context window. At $0.075 input and $0.30 output per 1M tokens, pricing is competitive for a vision-capable model.

Without benchmark data, reasoning, coding, and instruction-following quality cannot be assessed. The multimodal capability and large context are positive signals, but businesses cannot rely on these alone for production decisions.

This model may suit teams already in the ByteDance ecosystem who need low-cost vision and video processing. Independent evaluation is recommended before committing to any client-facing or high-stakes workflow.

Assessed June 6, 2026

Editorial notes

ByteDance Seed 1.6 Flash supports vision, video, tool use, and function calling with a 262K context, but has no benchmark data to verify capability.

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence0Technical0Value8Content3
Intelligence 0/10
Technical 0/10
Content 3/10
Value 8/10

How ByteDance Seed: Seed 1.6 Flash compares

Its 262K-token context window is larger than 81% of the models we list. At $0.08 per million input tokens it is cheaper than 69% of comparable models.

About ByteDance Seed: Seed 1.6 Flash

Seed 1.6 Flash is an ultra-fast multimodal deep thinking model by ByteDance Seed, supporting both text and visual understanding. It features a 256k context window and can generate outputs of..

Capabilities

Tool Use Function Calling Vision

How does ByteDance Seed: Seed 1.6 Flash stack up?

Compare side-by-side with other legacy models.

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Model Information

OpenRouter ID bytedance-seed/seed-1.6-flash
Providerbytedance-seed
Release Date December 23, 2025
Context Length262,144 tokens
Max Completion32,768 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.08 $0.000075
Output $0.30 $0.000300

Live Performance

Live endpoint metrics, refreshed every 30 minutes.

100%
Avg Uptime
974ms
Best Latency (TTFT)
51 tok/s
Best Throughput
1/1
Active Endpoints
Available via: Seed

Leaderboard Categories

Frequently asked questions about ByteDance Seed: Seed 1.6 Flash

How much does ByteDance Seed: Seed 1.6 Flash cost?

ByteDance Seed: Seed 1.6 Flash costs $0.08 per million input tokens and $0.30 per million output tokens.

What is the context window of ByteDance Seed: Seed 1.6 Flash?

ByteDance Seed: Seed 1.6 Flash has a context window of 262,144 tokens (262K).

What can ByteDance Seed: Seed 1.6 Flash do?

ByteDance Seed: Seed 1.6 Flash supports image/vision input, tool use, and function calling.

Who created ByteDance Seed: Seed 1.6 Flash?

ByteDance Seed: Seed 1.6 Flash is developed by ByteDance Seed and was released on December 23, 2025.