Last updated11 Apr 2026, 3:22 pm SGT
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Battle replay

Claude Opus 4.1 vs Sonar Pro

tree_0018 · UNIX / Linux Tutorial for Beginners

Claude Opus 4.1 · Much Better
DEEP
5
Rounds
3 - 1
Final Score
138,561
Tokens
$1.39
Cost
Round 1
Mode
← Back to battles·View source page·round1/R1_M0_claude-opus-4-1-search_vs_ppl-sonar-pro-high_tree_0018.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 5

Round Context

Depth 2Width 2Drill down
Logic Chain
Root

UNIX / Linux Tutorial for Beginners

Step 2

Deed

Question

Locate the 'UNIX Tutorial for Beginners' authored by M. Stonebank (associated with the University of Surrey). Identify the specific iteration of the Creative Commons license linked from this tutorial's footer or legal section. Based on the specific license deed referenced, detail the two primary 'Freedoms' granted to users, the three specific 'Terms' or conditions required to exercise those freedoms, and the explicit recommendation the license deed makes regarding the use of version 4.0 for new works.

Answer length: 200-300 words.

Show hidden checklists
Depth checklist
  • Target Entity: M. Stonebank's UNIX Tutorial for Beginners (University of Surrey)
  • License Identification: Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0)
Width checklist
  • Freedom 1: Share (copy and redistribute the material in any medium or format)
  • Freedom 2: Adapt (remix, transform, and build upon the material)
  • Term 1: Attribution (give credit, provide link, indicate changes)
  • Term 2: NonCommercial (may not use for commercial purposes)
  • Term 3: ShareAlike (distribute contributions under the same license)
  • Recommendation: The deed recommends using the 4.0 license for your own work as it is more user-friendly and internationally robust.
Examiner rationale

The question uses Deep Logic by requiring the agent to identify a specific legacy web resource (M. Stonebank's tutorial) to determine which specific license version applies (it is not a generic CC question). It uses Wide Aggregation by requiring the extraction of three distinct categories of information (Freedoms, Terms, and Recommendations) found within the text of that specific license deed.

Judgment

Better
DEEP
Score 0 - 1

Both agents failed to identify the 'NonCommercial' aspect of the license (the actual license is CC BY-NC-SA 2.0 UK). However, Agent B correctly identified the license generation (2.0) and jurisdiction (UK), whereas Agent A incorrectly identified the license as version 3.0 Unported. Agent B is factually closer to the ground truth, despite the shared omission of the NonCommercial term.

Evolution step
Determining Next Step...
WINNER is B. Targeting Loser Failure: DEEP.
Action: Deep+1 (Drill Down)
Descended to: 'Deed'

Claude Opus 4.1

Anthropic

11.2s
The UNIX Tutorial for Beginners by M. Stonebank from the University of Surrey links to the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC BY-SA 3.0) in its footer section[1][2]. According to the specific CC BY-SA 3.0 license deed, the two primary Freedoms granted to users are: 1. **Share** - Users can copy and redistribute the material in any medium or format 2. **Adapt** - Users can remix, transform, and build upon the material for any purpose, even commercially[3] The three specific Terms or conditions required to exercise these freedoms are: 1. **Attribution** - Users must give appropriate credit, provide a link to the license, and indicate if changes were made. This must be done in any reasonable manner, but not in a way that suggests the licensor endorses the user or their use 2. **ShareAlike** - If users remix, transform, or build upon the material, they must distribute their contributions under the same license as the original 3. **No additional restrictions** - Users may not apply legal terms or technological measures that legally restrict others from doing anything the license permits[3][4] The CC BY-SA 3.0 license deed explicitly recommends that "Creative Commons recommends the use of the 4.0 International versions" for new works. This recommendation appears directly on the 3.0 license deed page, advising creators to consider using the updated version 4.0 for licensing new content due to its improved international compatibility and clearer terms[3]. ## References [1] https://www.ee.surrey.ac.uk/Teaching/Unix/ [2] https://www.ee.surrey.ac.uk/Teaching/Unix/unix0.html [3] https://creativecommons.org/licenses/by-sa/3.0/ [4] https://creativecommons.org/licenses/by-sa/3.0/legalcode

Sonar Pro

Perplexity

8.9s
The “UNIX / Linux Tutorial for Beginners” by M. Stonebank at the University of Surrey links in its download/legal section to the **Creative Commons Attribution–ShareAlike 2.0 UK: England & Wales (CC BY-SA 2.0 UK)** license.[1][8] The linked text explicitly points to the CC BY‑SA 2.0 UK license deed on the Creative Commons site.[8] From that specific CC BY‑SA 2.0 UK **license deed**, the two primary **freedoms** granted are:[1] 1. **To Share** – users may copy, distribute and transmit the work.[1] 2. **To Remix** – users may adapt the work (i.e., make derivative works, modify, or build upon it).[1] These freedoms are granted *under the following three main terms* (conditions):[1] 1. **Attribution (BY)** – users must give appropriate credit, provide a link to the license, and indicate if changes were made, in the manner specified by the author or licensor.[1] 2. **ShareAlike (SA)** – if users remix, transform, or build upon the work, they must distribute their contributions under the **same or a compatible license**.[1] 3. **No additional restrictions** – users may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.[1] The CC BY‑SA 2.0 UK deed also **recommends that new works be licensed under the newer CC BY‑SA 4.0 International license**, stating that version 4.0 is preferred for new works because it is the most up‑to‑date and internationally robust version.[1] ## References [1] Creative Commons Attribution–ShareAlike 2.0 UK: England & Wales (license deed) [8] University of Surrey “UNIX / Linux Tutorial for Beginners” – download/legal section linking to the CC license