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Five or fewer confirmed AI changes, with original sources, on mornings when something changed.A free source-linked morning brief.

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Model A
Muse Spark 1.2

Meta

61.7/100

Estimated · Public rank #51

90% interval 50.1–73.2

Muse Spark 1.2 vs Ornith-1.5-35B-A3B

Updated August 19, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

Model B
Ornith-1.5-35B-A3B

Ornith AI

49.3/100

Estimated · Public rank #136

90% interval 39.4–59.1

Decision reading

Muse Spark 1.2 has the higher public score estimate, 61.66 versus 49.27, but the 90% score intervals overlap. Treat that as a lead, not a settled winner.

3 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Long documents

    Prompts that approach the documented context limit

    Muse Spark 1.2

    Muse Spark 1.2 has the larger documented context window.

    Confidence: documented

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    No shared weighted benchmark basis supports a winner.

    Confidence: limited

  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    No shared weighted benchmark basis supports a winner.

    Confidence: limited

  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

Shared results
3
Muse Spark 1.2 only
0
Ornith-1.5-35B-A3B only
15
Like-for-like categories
0 / 8

Category results, on a stated basis

Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.

Agentic

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
67.6
Weighted basis
0 vs 1 rows
Reading
Not comparable

Coding

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
71.5
Weighted basis
0 vs 2 rows
Reading
Not comparable

Reasoning

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Knowledge

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
34.2
Weighted basis
0 vs 2 rows
Reading
Not comparable

Math

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Multilingual

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Multimodal

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Instruction following

Not comparable
Muse Spark 1.2
Not measured
Ornith-1.5-35B-A3B
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

A shared-evidence shape is not available.

BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Muse Spark 1.2
$0.00338
Fits in one request
Ornith-1.5-35B-A3B
Self-hosted; infrastructure cost varies
Fits in one request

Ornith-1.5-35B-A3B has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

Muse Spark 1.2
$0.07525
Fits in one request
Ornith-1.5-35B-A3B
Self-hosted; infrastructure cost varies
Fits in one request

Ornith-1.5-35B-A3B has no comparable published API token rate.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Muse Spark 1.2
$0.0975
Fits in one request
Ornith-1.5-35B-A3B
Self-hosted; infrastructure cost varies
Fits in one request
Cached-input rate unavailable

Ornith-1.5-35B-A3B has no comparable published API token rate.

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Documented inputs

Muse Spark 1.2

Not sourced

Ornith-1.5-35B-A3B

Not sourced

Documented outputs

Muse Spark 1.2

Not sourced

Ornith-1.5-35B-A3B

Not sourced

Provider availability

Muse Spark 1.2

Not sourced

Ornith-1.5-35B-A3B

Not sourced

Reasoning profile

Muse Spark 1.2

Reasoning

Ornith-1.5-35B-A3B

Reasoning

Weight access

Muse Spark 1.2

Proprietary

Ornith-1.5-35B-A3B

Open Weight

License

Muse Spark 1.2

Proprietary

Ornith-1.5-35B-A3B

Open Weight

Release date

Muse Spark 1.2

2026-08-05

Ornith-1.5-35B-A3B

2026-08-18

If you already use one of these models
Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
Muse Spark 1.2 has the higher public score estimate, 61.66 versus 49.27, but the 90% score intervals overlap.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
Muse Spark 1.2 has the larger documented window (1M).

Run the same representative tasks against both endpoints before changing production traffic.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence18 rows

Agentic

  • Terminal-Bench 2.1

    Muse Spark 1.282.9%
    Source
    Ornith-1.5-35B-A3B67.8%
    Source

    Muse Spark 1.2 leads this result

  • HLE w/ tools

    Muse Spark 1.2
    Ornith-1.5-35B-A3B33.4%
    Source

    Not directly comparable

  • MCP Atlas

    Muse Spark 1.2
    Ornith-1.5-35B-A3B70.2%
    Source

    Not directly comparable

  • Toolathlon-Verified

    Muse Spark 1.2
    Ornith-1.5-35B-A3B48.7%
    Source

    Not directly comparable

  • WideResearch

    Muse Spark 1.2
    Ornith-1.5-35B-A3B67.8%
    Source

    Not directly comparable

  • BrowseComp

    Muse Spark 1.2
    Ornith-1.5-35B-A3B67.6%
    Source

    Not directly comparable

  • Claw-Eval

    Muse Spark 1.2
    Ornith-1.5-35B-A3B72.5%
    Source

    Not directly comparable

Coding

  • Terminal-Bench 2.1

    Muse Spark 1.282.9%
    Source
    Ornith-1.5-35B-A3B67.8%
    Source

    Muse Spark 1.2 leads this result

  • deepSwe

    Muse Spark 1.259.3%
    Source
    Ornith-1.5-35B-A3B22%
    Source

    Muse Spark 1.2 leads this result

  • SWE-bench Verified

    Muse Spark 1.2
    Ornith-1.5-35B-A3B79%
    Source

    Not directly comparable

  • SWE-bench Pro

    Muse Spark 1.2
    Ornith-1.5-35B-A3B59.6%
    Source

    Not directly comparable

  • SWE Multilingual

    Muse Spark 1.2
    Ornith-1.5-35B-A3B71.4%
    Source

    Not directly comparable

  • frontierBench

    Muse Spark 1.2
    Ornith-1.5-35B-A3B5.1%
    Source

    Not directly comparable

  • NL2Repo

    Muse Spark 1.2
    Ornith-1.5-35B-A3B46.2%
    Source

    Not directly comparable

Knowledge

  • GPQA

    Muse Spark 1.2
    Ornith-1.5-35B-A3B89.2%
    Source

    Not directly comparable

  • GPQA-D

    Muse Spark 1.2
    Ornith-1.5-35B-A3B89.2%
    Source

    Not directly comparable

  • HLE

    Muse Spark 1.2
    Ornith-1.5-35B-A3B25.6%
    Source

    Not directly comparable

  • HLE w/o tools

    Muse Spark 1.2
    Ornith-1.5-35B-A3B25.6%
    Source

    Not directly comparable

Frequently asked questions

Which is better, Muse Spark 1.2 or Ornith-1.5-35B-A3B?

Muse Spark 1.2 has the higher public score estimate, 61.66 versus 49.27, but the 90% score intervals overlap. The higher estimate is not a decisive winner because the uncertainty ranges overlap.

Which is better for coding, Muse Spark 1.2 or Ornith-1.5-35B-A3B?

The published evidence does not provide a shared weighted coding basis for both models, so BenchLM does not name a coding winner.

Which is better for agentic tasks, Muse Spark 1.2 or Ornith-1.5-35B-A3B?

The published evidence does not provide a shared weighted agentic tasks basis for both models, so BenchLM does not name a agentic tasks winner.

Which costs less, Muse Spark 1.2 or Ornith-1.5-35B-A3B?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, Muse Spark 1.2 or Ornith-1.5-35B-A3B?

Muse Spark 1.2 has the larger documented context window: 1M, compared with 262K.

Related comparisons

Last updated August 19, 2026

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