Model comparison
Claude 4 Sonnet vs Laguna XS.2
Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Claude 4 Sonnet #168 (Supported); Laguna XS.2 unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Claude 4 Sonnet and Laguna XS.2 share 1 comparable benchmark result. 1 of 8 categories are comparable. 15 results are unique to Claude 4 Sonnet; 4 to Laguna XS.2.
Updated July 27, 2026- Shared results
- 1
- Claude 4 Sonnet only
- 15
- Laguna XS.2 only
- 4
- Comparable categories
- 1 / 8
Treat this as a split decision. Claude 4 Sonnet makes more sense if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model; Laguna XS.2 is the better fit if you want the cheaper token bill or you need the larger 256K context window.
Confidence note. This is a partial-evidence comparison with 1 shared benchmark result across 1 evidence category; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Claude 4 Sonnet 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 4 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 4 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. Laguna XS.2 gives you the larger context window at 256K, compared with 200K for Claude 4 Sonnet.
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 | Claude 4 Sonnet | Δ | Laguna XS.2 |
|---|---|---|---|
| Coding | Claude 4 Sonnet72.7 | Margin← 11.9 | Laguna XS.260.8 |
| Agentic | Claude 4 SonnetNot measured | MarginNo overlap | Laguna XS.235.7 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
SWE-bench Verified
CodingA 72.7%B 69.9%Winner: Claude 4 SonnetΔ 2.8SWE-bench Verified: Claude 4 Sonnet scored 72.7%; Laguna XS.2 scored 69.9%. Claude 4 Sonnet wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Claude 4 Sonnet | Laguna XS.2 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Claude 4 Sonnet$3 input / $15 output | Laguna XS.2$0 input / $0 output | Laguna XS.2 has the lower combined listed price. |
| Generation speedtokens per second | Claude 4 Sonnet40 tok/s | Laguna XS.2Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Claude 4 Sonnet1.33 s | Laguna XS.2Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Claude 4 Sonnet200K | Laguna XS.2256K | Laguna XS.2 lists the larger context window. |
Benchmark Deep Dive
Agentic4 benchmarks
CodingClaude 4 Sonnet wins5 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Claude 4 Sonnet | Laguna XS.2 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 25.5% | — | Not comparable |
| AA-GPQA DiamondSource | 68.3% | — | Not comparable |
| AA-HLESource | 4.0% | — | Not comparable |
| AA-Omniscience IndexSource | -9.2% | — | Not comparable |
| AA-Omniscience AccuracySource | 22.4% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 40.8% | — | Not comparable |
Multimodal2 benchmarks
Inst. Following1 benchmarks
| Benchmark | Claude 4 Sonnet | Laguna XS.2 | Result |
|---|---|---|---|
| AA-IFBenchSource | 45.4% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, Claude 4 Sonnet or Laguna XS.2?
Claude 4 Sonnet 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 4 Sonnet or Laguna XS.2?
Claude 4 Sonnet has the edge for coding in this comparison, averaging 72.7 versus 60.8. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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