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Comparison · 2 models · Updated Oct 4, 2026

Seed 2.1 Turbo vs Muse Glimmer 30B

Too close to call on our weighted score (Muse Glimmer 30B 57, Seed 2.1 Turbo 57). The right pick depends on what you value most.

  1. ByteDance Seed

    Seed 2.1 Turbo

    Released Jun 23, 2026

    57/100
    • ECI—
    • Price$0.445 / $2.23
    • Context256K
  2. Meta

    Muse Glimmer 30B

    Released Aug 10, 2026

    57/100
    • ECI—
    • Price$0.30 / $1.20
    • Context131K
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01 — Verdict

Too close to call

It is close. Our weighted score puts them within a point (Muse Glimmer 30B 57/100, Seed 2.1 Turbo 57/100), so choose by what matters most for your work: Muse Glimmer 30B on price and Seed 2.1 Turbo for long inputs. The score weighs price 50%, inputs & features 30%, context window 20%. 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 priceMuse Glimmer 30BMuse Glimmer 30B $0.525 · Seed 2.1 Turbo $0.891 per 1M tokens (3:1 blend)
  • Longest contextSeed 2.1 TurboSeed 2.1 Turbo 256,000 · Muse Glimmer 30B 131,072 tokens
  • Widest inputsSeed 2.1 TurboSeed 2.1 Turbo: Text, Images, Video · Muse Glimmer 30B: Text, Images
  • Self-hostingMuse Glimmer 30BPublishes downloadable weights (Apache 2.0)
How the score is built
MeasureWeightSeed 2.1 TurboMuse Glimmer 30B
Price50%5263
Inputs & features30%8070
Context window20%3624
Overall100%57/10057/100

Left out because at least one model lacks the data: capability. 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.

Seed 2.1 Turbo vs Muse Glimmer 30B specifications side by side
SpecificationSeed 2.1 TurboByteDance SeedMuse Glimmer 30BMeta
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.445$0.30 (best)
Output$2.23$1.20 (best)
Cached input$0.089—
Blended (3:1)$0.891$0.525 (best)
Long-context rateSame rateSame rate
Price sourceOfficial Volcengine Ark APIMedian of 10 providers
Limits
Context window256,000 tokens (best)131,072 tokens
Max output256,000 tokens (best)131,072 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoYesNo
ReasoningYesminimal · low · medium · high · xhigh · maxYes
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryOpenApache 2.0
API model IDdoubao-seed-2-1-turbo-260628—
API providers412 (best)
ReleasedJun 23, 2026Aug 10, 2026
Knowledge cutoff—Jan 4, 2026
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.

  • Seed 2.1 Turbo$8.91
  • Muse Glimmer 30B$5.40
04 — Questions

Which should you choose?

Which is better: Seed 2.1 Turbo or Muse Glimmer 30B?

It is close. Our weighted score puts them within a point (Muse Glimmer 30B 57/100, Seed 2.1 Turbo 57/100), so choose by what matters most for your work: Muse Glimmer 30B on price and Seed 2.1 Turbo for long inputs. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Seed 2.1 Turbo or Muse Glimmer 30B?

Muse Glimmer 30B is cheaper at $0.30 input / $1.20 output per million tokens (median across 10 API providers). Seed 2.1 Turbo costs $0.445 input / $2.23 output per million tokens (official Volcengine Ark API price). At a typical mix of three input tokens to one output token, that is $0.525 per million tokens for Muse Glimmer 30B versus $0.891 for Seed 2.1 Turbo (1.7× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Seed 2.1 Turbo has not been scored yet and Muse Glimmer 30B has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Seed 2.1 Turbo and Muse Glimmer 30B 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 2.1 Turbo has the largest context window at 256,000 tokens, against 131,072 for Muse Glimmer 30B. Maximum output per response: Seed 2.1 Turbo up to 256,000, Muse Glimmer 30B up to 131,072 tokens.

Which can read images, PDFs, audio or video?

Seed 2.1 Turbo accepts text, images and video; Muse Glimmer 30B accepts text and images. Seed 2.1 Turbo handles the widest range of inputs.

Are any of these open source?

Muse Glimmer 30B publishes its weights (Apache 2.0) and can be self-hosted; Seed 2.1 Turbo is proprietary.

Which is newer?

Muse Glimmer 30B is the newest, released Aug 10, 2026. Seed 2.1 Turbo came out Jun 23, 2026. Knowledge cutoff: Muse Glimmer 30B Jan 4, 2026.

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.