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Model comparison

Claude Opus 4.6 vs Laguna XS.2

Data verified

Head-to-head evidence from 3 shared benchmark results across 2 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

67.76/100
No comparison
Laguna XS.2
Poolside
N/A
2 category wins0 category wins

Public leaderboard positions: Claude Opus 4.6 #20 (Supported); Laguna XS.2 unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Claude Opus 4.6 and Laguna XS.2 share 3 comparable benchmark results. 2 of 8 categories are comparable. 43 results are unique to Claude Opus 4.6; 2 to Laguna XS.2.

Updated July 27, 2026
Shared results
3
Claude Opus 4.6 only
43
Laguna XS.2 only
2
Comparable categories
2 / 8

Treat this as a split decision. Claude Opus 4.6 makes more sense if agentic is the priority or you need the larger 1M context window; Laguna XS.2 is the better fit if you want the cheaper token bill or you want the stronger reasoning-first profile.

Confidence note. This is a partial-evidence comparison with 3 shared benchmark results across 2 evidence categories; 2 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

Claude Opus 4.6 and Laguna XS.2 finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.

Claude Opus 4.6 is also the more expensive model on tokens at $5.00 input / $25.00 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 Opus 4.6 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 Opus 4.6 gives you the larger context window at 1M, compared with 256K for Laguna XS.2.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for Claude Opus 4.6 and Laguna XS.2
CategoryClaude Opus 4.6ΔLaguna XS.2
AgenticClaude Opus 4.673.0Margin← 37.3Laguna XS.235.7
CodingClaude Opus 4.668.1Margin← 7.3Laguna XS.260.8
KnowledgeClaude Opus 4.669.1MarginNo overlapLaguna XS.2Not measured
MathClaude Opus 4.636.3MarginNo overlapLaguna XS.2Not measured
MultimodalClaude Opus 4.677.3MarginNo overlapLaguna XS.2Not measured

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · Claude Opus 4.6B · Laguna XS.2

  1. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 65.4%B 35.7%
    Winner: Claude Opus 4.6Δ 29.7
    Terminal-Bench 2.0: Claude Opus 4.6 scored 65.4%; Laguna XS.2 scored 35.7%. Claude Opus 4.6 wins this benchmark.

  2. SWE-bench Verified

    Coding
    Source ↗
    A 80.8%B 69.9%
    Winner: Claude Opus 4.6Δ 10.9
    SWE-bench Verified: Claude Opus 4.6 scored 80.8%; Laguna XS.2 scored 69.9%. Claude Opus 4.6 wins this benchmark.

  3. SWE-bench Pro

    Coding
    Source ↗
    A 53.4%B 46.3%
    Winner: Claude Opus 4.6Δ 7.1
    SWE-bench Pro: Claude Opus 4.6 scored 53.4%; Laguna XS.2 scored 46.3%. Claude Opus 4.6 wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricClaude Opus 4.6Laguna XS.2Comparison
Input / output priceUSD per 1M tokensClaude Opus 4.6$5 input / $25 outputLaguna XS.2$0 input / $0 outputLaguna XS.2 has the lower combined listed price.
Generation speedtokens per secondClaude Opus 4.640 tok/sLaguna XS.2Not availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenClaude Opus 4.61.78 sLaguna XS.2Not availableA complete latency comparison is not available.
Context windowmaximum listed tokensClaude Opus 4.61MLaguna XS.2256KClaude Opus 4.6 lists the larger context window.

Benchmark Deep Dive

AgenticClaude Opus 4.6 wins
BenchmarkClaude Opus 4.6Laguna XS.2Result
Terminal-Bench 2.0Source 65.4%35.7%Claude Opus 4.6 leads
BrowseCompSource 83.7%—Not comparable
OSWorld-VerifiedSource 72.7%—Not comparable
τ²-bench resultsSource 84.8%—Not comparable
Claw-EvalSource 70.4%—Not comparable
DeepSearchQASource 73.7%—Not comparable
CyberGymSource 66.6%—Not comparable
Gert LabsSource 61.85%—Not comparable
ResearchClawBenchSource 19.9%—Not comparable
JobBenchSource 36.7%—Not comparable
CodingClaude Opus 4.6 wins
BenchmarkClaude Opus 4.6Laguna XS.2Result
SWE-bench VerifiedSource 80.8%69.9%Claude Opus 4.6 leads
SWE-bench Verified*Source 75.6%—Not comparable
LiveCodeBench ProSource 70.7%—Not comparable
SWE-bench ProSource 53.4%46.3%Claude Opus 4.6 leads
SWE-RebenchSource 65.3%—Not comparable
React Native EvalsSource 84.1%—Not comparable
Vibe Code BenchSource 57.57%—Not comparable
AA-SciCodeSource 45.7%—Not comparable
FrontierCode 1.1 MainSource 26.9%—Not comparable
SWE MultilingualSource —57.7%Not comparable
Terminal-Bench 2.0Source —35.7%Not comparable
Reasoning
BenchmarkClaude Opus 4.6Laguna XS.2Result
AA-LCRSource 58.3%—Not comparable
CritPtSource 2.8%—Not comparable
Knowledge
BenchmarkClaude Opus 4.6Laguna XS.2Result
GPQASource 91.3%—Not comparable
GPQA-DSource 89.2%—Not comparable
SuperGPQASource 95%—Not comparable
MMLU-ProSource 82%—Not comparable
MMLU-Pro (Arcee)Source 89.1%—Not comparable
HLESource 53%—Not comparable
HLE w/o toolsSource 40%—Not comparable
HealthBench HardSource 14.8%—Not comparable
MedXpertQA (Text)Source 52.1%—Not comparable
Artificial Analysis Intelligence IndexSource 37.8%—Not comparable
AA-GPQA DiamondSource 84.0%—Not comparable
AA-HLESource 18.6%—Not comparable
AA-Omniscience IndexSource 3.5%—Not comparable
AA-Omniscience AccuracySource 45.2%—Not comparable
AA-Omniscience Hallucination RateSource 76.0%—Not comparable
Math
BenchmarkClaude Opus 4.6Laguna XS.2Result
AIME25 (Arcee)Source 99.8%—Not comparable
FrontierMath v2 (Tiers 1-3)Source 40.700%—Not comparable
FrontierMath v2 (Tier 4)Source 22.900%—Not comparable
Multimodal
BenchmarkClaude Opus 4.6Laguna XS.2Result
MMMU-ProSource 77.3%—Not comparable
ERQASource 51.6%—Not comparable
ScreenSpot ProSource 83.1%—Not comparable
MedXpertQA (MM)Source 64.8%—Not comparable
AA-MMMU-ProSource 72.5%—Not comparable
Design Arena WebsiteSource 1319—Not comparable
Inst. Following
BenchmarkClaude Opus 4.6Laguna XS.2Result
AA-IFBenchSource 44.6%—Not comparable
Frequently Asked Questions (3)

Which is better, Claude Opus 4.6 or Laguna XS.2?

Claude Opus 4.6 and Laguna XS.2 are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.

Which is better for coding, Claude Opus 4.6 or Laguna XS.2?

Claude Opus 4.6 has the edge for coding in this comparison, averaging 68.1 versus 60.8. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude Opus 4.6 or Laguna XS.2?

Claude Opus 4.6 has the edge for agentic tasks in this comparison, averaging 73 versus 35.7. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

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