Clover 35B A3B Preview vs Muse Spark 1.3 Contributor, head to head

Side A

Side B

Overall

Muse Spark 1.3 Contributor is clearly better. It wins 68 of the 70 test cases where they differ.

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Task by task

A score turns orange only when that model wins clearly more of the task's test cases. The time under each score is the average per test case, on the machine it ran on. Both models spend about the same on thinking per test case.

Thinking tokensAnswer tokens

TaskAClover 35B A3B PreviewBMuse Spark 1.3 ContributorClover 35B A3B PreviewMuse Spark 1.3 Contributor

Overall

3035.1s

8.4K8.7K

661m 42s

Agents

Runs multi-step jobs through tools, within a written policy

2036.8s

9.6K14.7K

573m 16s

Structured Extraction

Turns logs, diffs and records into exact JSON

4327.5s

7.2K4.2K

9037.9s

Coding

Writes code and SQL that pass hidden tests

101m 5s

12.2K10.8K

482m 1s

Grounded Answers

Answers from the given documents with sources, never guesses

4821.0s

5.4K6.1K

811m 1s

Instruction Following

Applies every rule, including ones changed mid-conversation

5332.8s

9.2K8.7K

841m 18s

Business Logic

Computes billing, scheduling and pricing rules exactly

1936.1s

9.8K6K

761m 7s

Security & permissions

Ignores planted instructions, still does the allowed work

4725.6s

5.8K8.2K

761m 59s

Diagnosis & investigation

Chooses diagnostic checks, repairs supported causes and verifies recovery

037.0s

7K17.2K

173m 34s

What you'd run

The build behind each score. Orange marks the faster, smaller, cheaper or longer-context side.

SpecAClover 35B A3B PreviewBMuse Spark 1.3 Contributor

Speed

252 tok/s

107 tok/s

Machine

Hosted

Memory at 32K

—

Context

—

Cost per run

Not measured

$0.41

Cost per case

Not measured

$0.0027

Time per case

35.1s

1m 42s

Quantization

—

Harness

custom

openrouter

The race

No lead changes

Each model's running score as the test cases go by. The dashed line is a perfect run.

Clover 35B A3B PreviewMuse Spark 1.3 Contributor

Every test case

153 test cases

Each square is one test case, colored by the model that scored higher.

Agents111

Structured Extraction010

Coding08

Grounded Answers18

Instruction Following010

Business Logic012

Security & permissions08

Diagnosis & investigation01

2 won by Clover 35B A3B Preview68 won by Muse Spark 1.3 Contributor83 tied