ByteDance Seed: Seed 1.6 Flash
Analysis Summary
Seed 1.6 Flash is a low-cost multimodal model supporting text, images, video, and tool-enabled workflows. It has a 262K context window, function calling, and pricing of $0.075 per million input tokens and $0.30 per million output tokens. That combination is attractive for high-volume media processing and lightweight assistant tasks.
The model can suit image or video summarisation, content transformation, and routine automation where speed and cost are central. However, no general, coding, or agentic benchmark results are supplied, so its reliability for complex reasoning and autonomous client workflows remains unverified. Use it in bounded tasks with quality checks, and validate output carefully before assigning it customer-facing or strategic work.
Assessed September 7, 2026
Editorial notes
Seed 1.6 Flash offers multimodal input, function calling, a 262K context window, and low pricing, but its lack of benchmark data limits confidence for demanding production work.
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DFO Verdict
Seed 1.6 Flash offers multimodal input, function calling, a 262K context window, and low pricing, but its lack of benchmark data limits confidence for demanding production work.
How ByteDance Seed: Seed 1.6 Flash compares
Its 262K-token context window is larger than 71% of the models we list. At $0.08 per million input tokens it is cheaper than 72% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.08 | $0.000075 |
| Output | $0.30 | $0.000300 |
What would ByteDance Seed: Seed 1.6 Flash cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 780 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save ByteDance Seed: Seed 1.6 Flash for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout 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..
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.