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Comparison · 2 models · Updated Oct 4, 2026

Trinity Nano Preview vs Seed 1.6 Flash

Seed 1.6 Flash comes out ahead, 56 to 25 on our weighted score, and it is the cheaper option too.

  1. Arcee AI

    Trinity Nano Preview

    Released Dec 1, 2025

    25/100
    • ECI—
    • Price—
    • Context131K
  2. Our pick

    ByteDance Seed

    Seed 1.6 Flash

    Released Aug 28, 2025

    56/100
    • ECI—
    • Price$0.022 / $0.223
    • Context256K
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Seed 1.6 Flash is our pick

Seed 1.6 Flash is the better all-round choice, scoring 56/100 against Trinity Nano Preview (25). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceSeed 1.6 FlashSeed 1.6 Flash $0.072 per 1M tokens (3:1 blend) · Trinity Nano Preview unpriced
  • Longest contextSeed 1.6 FlashSeed 1.6 Flash 256,000 · Trinity Nano Preview 131,072 tokens
  • Widest inputsSeed 1.6 FlashTrinity Nano Preview: Text · Seed 1.6 Flash: Text, Images
  • Self-hostingTrinity Nano PreviewPublishes downloadable weights (OpenMDW-1.1)
How the score is built
MeasureWeightTrinity Nano PreviewSeed 1.6 Flash
Inputs & features60%2570
Context window40%2436
Overall100%25/10056/100

Left out because at least one model lacks the data: capability and price. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Trinity Nano Preview vs Seed 1.6 Flash specifications side by side
SpecificationTrinity Nano PreviewArcee AISeed 1.6 FlashByteDance Seed
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input—$0.022
Output—$0.223
Cached input—$0.0044
Blended (3:1)—$0.072
Long-context rate—Over 32K: $0.045 / $0.445
Price source—Official Volcengine Ark API
Limits
Context window131,072 tokens256,000 tokens (best)
Max output131,072 tokens (best)32,000 tokens
Inputs and features
TextYesYes
ImagesNoYes
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningNoYes
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenOpenMDW-1.1Proprietary
API model ID—doubao-seed-1-6-flash-250828
API providers—2
ReleasedDec 1, 2025Aug 28, 2025
Knowledge cutoff——
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Trinity Nano Preview—
  • Seed 1.6 Flash$0.668
04 — Questions

Which should you choose?

Which is better: Trinity Nano Preview or Seed 1.6 Flash?

Seed 1.6 Flash is the better all-round choice, scoring 56/100 against Trinity Nano Preview (25). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Trinity Nano Preview or Seed 1.6 Flash?

Seed 1.6 Flash is cheaper at $0.022 input / $0.223 output per million tokens (official Volcengine Ark API price). . At a typical mix of three input tokens to one output token, that is $0.072 per million tokens for Seed 1.6 Flash versus . Trinity Nano Preview has no published per-token price.

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Trinity Nano Preview has not been scored yet and Seed 1.6 Flash has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Trinity Nano Preview and Seed 1.6 Flash yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Seed 1.6 Flash has the largest context window at 256,000 tokens, against 131,072 for Trinity Nano Preview. Maximum output per response: Trinity Nano Preview up to 131,072, Seed 1.6 Flash up to 32,000 tokens.

Which can read images, PDFs, audio or video?

Trinity Nano Preview accepts text; Seed 1.6 Flash accepts text and images. Seed 1.6 Flash handles the widest range of inputs.

Are any of these open source?

Trinity Nano Preview publishes its weights (OpenMDW-1.1) and can be self-hosted; Seed 1.6 Flash is proprietary.

Which is newer?

Trinity Nano Preview is the newest, released Dec 1, 2025. Seed 1.6 Flash came out Aug 28, 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.