Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 3.5 Sonnet
40
Laguna XS.2
37
Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. Laguna XS.2 only becomes the better choice if coding is the priority or you want the cheaper token bill.
Coding
+6.1 difference
Claude 3.5 Sonnet
Laguna XS.2
$3 / $15
$0 / $0
N/A
N/A
N/A
N/A
200K
131K
Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. Laguna XS.2 only becomes the better choice if coding is the priority or you want the cheaper token bill.
Claude 3.5 Sonnet has the cleaner provisional overall profile here, landing at 40 versus 37. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
Claude 3.5 Sonnet is also the more expensive model on tokens at $3.00 input / $15.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Laguna XS.2. That is roughly Infinityx on output cost alone. Laguna XS.2 is the reasoning model in the pair, while Claude 3.5 Sonnet is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Claude 3.5 Sonnet gives you the larger context window at 200K, compared with 131K for Laguna XS.2.
Claude 3.5 Sonnet is ahead on BenchLM's provisional leaderboard, 40 to 37. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49% and 69.9%.
Laguna XS.2 has the edge for coding in this comparison, averaging 55.1 versus 49. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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