ByteDance Seed: Seed 1.6 Flash
Analysis Summary
ByteDance Seed: Seed 1.6 Flash comes from ByteDance Seed. It was released in December 2025. We place it in the Legacy tier, where it sits at #403 of 565 models overall.
Its 262K-token context window is larger than 81% of the models we list, suiting long documents, large codebases, and retrieval-heavy workloads. Crucially for business adoption, ByteDance Seed: Seed 1.6 Flash combines tool use, function calling, and vision input in a single model, letting teams consolidate several use cases instead of stitching together multiple services.
At $0.075 input and $0.300 output per 1M tokens, ByteDance Seed: Seed 1.6 Flash is aggressively priced for high-volume use which makes it easy to justify for cost-sensitive, high-throughput deployments. ByteDance Seed: Seed 1.6 Flash is worth evaluating where ByteDance Seedās ecosystem and the modelās specific capabilities fit your workflow.
Editorial notes
ByteDance Seed 1.6 Flash has no benchmark data despite multimodal support including video and a 262K context; capability cannot be assessed, placing it in the exploratory tier.
Assessed May 31, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
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
How does ByteDance Seed: Seed 1.6 Flash stack up?
Compare side-by-side with other legacy models.
Model Information
| OpenRouter ID |
bytedance-seed/seed-1.6-flash
|
| Provider | bytedance-seed |
| Release Date | December 23, 2025 |
| Context Length | 262,144 tokens |
| Max Completion | 32,768 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.
Leaderboard Categories
External Resources
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.
