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Comparison · 2 models · Updated Oct 4, 2026

Muse Glimmer 30B vs Seed 2.1 Pro

Muse Glimmer 30B comes out ahead, 57 to 50 on our weighted score, and it is the cheaper option too.

  1. Our pick

    Meta

    Muse Glimmer 30B

    Released Aug 10, 2026

    57/100
    • ECI—
    • Price$0.30 / $1.20
    • Context131K
  2. ByteDance Seed

    Seed 2.1 Pro

    Released Jun 23, 2026

    50/100
    • ECI—
    • Price$0.891 / $4.45
    • Context256K
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Muse Glimmer 30B is our pick

Muse Glimmer 30B is the better all-round choice, scoring 57/100 against Seed 2.1 Pro (50). It leads on price. Seed 2.1 Pro wins on inputs & features and context window. 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 Pro $1.78 per 1M tokens (3:1 blend)
  • Longest contextSeed 2.1 ProSeed 2.1 Pro 256,000 · Muse Glimmer 30B 131,072 tokens
  • Widest inputsSeed 2.1 ProMuse Glimmer 30B: Text, Images · Seed 2.1 Pro: Text, Images, Video
  • Self-hostingMuse Glimmer 30BPublishes downloadable weights (Apache 2.0)
How the score is built
MeasureWeightMuse Glimmer 30BSeed 2.1 Pro
Price50%6338
Inputs & features30%7080
Context window20%2436
Overall100%57/10050/100

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.

Muse Glimmer 30B vs Seed 2.1 Pro specifications side by side
SpecificationMuse Glimmer 30BMetaSeed 2.1 ProByteDance Seed
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.30 (best)$0.891
Output$1.20 (best)$4.45
Cached input—$0.178
Blended (3:1)$0.525 (best)$1.78
Long-context rateSame rateSame rate
Price sourceMedian of 10 providersOfficial Volcengine Ark API
Limits
Context window131,072 tokens256,000 tokens (best)
Max output131,072 tokens256,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoNoYes
ReasoningYesYesminimal · low · medium · high · xhigh · max
Tool callingYesYes
Structured outputYesYes
Availability
WeightsOpenApache 2.0Proprietary
API model ID—doubao-seed-2-1-pro-260628
API providers12 (best)2
ReleasedAug 10, 2026Jun 23, 2026
Knowledge cutoffJan 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.

  • Muse Glimmer 30B$5.40
  • Seed 2.1 Pro$17.81
04 — Questions

Which should you choose?

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

Muse Glimmer 30B is the better all-round choice, scoring 57/100 against Seed 2.1 Pro (50). It leads on price. Seed 2.1 Pro wins on inputs & features and context window. 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, Muse Glimmer 30B or Seed 2.1 Pro?

Muse Glimmer 30B is cheaper at $0.30 input / $1.20 output per million tokens (median across 10 API providers). Seed 2.1 Pro costs $0.891 input / $4.45 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 $1.78 for Seed 2.1 Pro (3.4× as much).

Which scores higher on benchmarks?

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

Which is better for coding?

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

Which can read images, PDFs, audio or video?

Muse Glimmer 30B accepts text and images; Seed 2.1 Pro accepts text, images and video. Seed 2.1 Pro 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 Pro is proprietary.

Which is newer?

Muse Glimmer 30B is the newest, released Aug 10, 2026. Seed 2.1 Pro 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.