Model comparison
DeepSeek V3 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: DeepSeek V3 #154 (Supported); Laguna XS.2 unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. DeepSeek V3 and Laguna XS.2 share 1 comparable benchmark result. 1 of 8 categories are comparable. 21 results are unique to DeepSeek V3; 4 to Laguna XS.2.
Updated July 27, 2026- Shared results
- 1
- DeepSeek V3 only
- 21
- Laguna XS.2 only
- 4
- Comparable categories
- 1 / 8
Treat this as a split decision. DeepSeek V3 makes more sense if you would rather avoid the extra latency and token burn of a reasoning model; Laguna XS.2 is the better fit if coding is the priority or you want the cheaper token bill.
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
DeepSeek V3 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.
DeepSeek V3 is also the more expensive model on tokens at $0.27 input / $1.10 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 DeepSeek V3 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 128K for DeepSeek V3.
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 | DeepSeek V3 | Δ | Laguna XS.2 |
|---|---|---|---|
| Coding | DeepSeek V338.9 | Margin→ 21.9 | Laguna XS.260.8 |
| Agentic | DeepSeek V3Not measured | MarginNo overlap | Laguna XS.235.7 |
| Knowledge | DeepSeek V372.7 | MarginNo overlap | Laguna XS.2Not measured |
| Math | DeepSeek V31.7 | MarginNo overlap | Laguna XS.2Not measured |
| Inst. Following | DeepSeek V386.1 | MarginNo overlap | Laguna XS.2Not measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
SWE-bench Verified
CodingA 42%B 69.9%Winner: Laguna XS.2Δ 27.9SWE-bench Verified: DeepSeek V3 scored 42%; Laguna XS.2 scored 69.9%. Laguna XS.2 wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | DeepSeek V3 | Laguna XS.2 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | DeepSeek V3$0.27 input / $1.1 output | Laguna XS.2$0 input / $0 output | Laguna XS.2 has the lower combined listed price. |
| Generation speedtokens per second | DeepSeek V3Not available | Laguna XS.2Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | DeepSeek V3Not available | Laguna XS.2Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | DeepSeek V3128K | Laguna XS.2256K | Laguna XS.2 lists the larger context window. |
Benchmark Deep Dive
Agentic5 benchmarks
CodingLaguna XS.2 wins7 benchmarks
| Benchmark | DeepSeek V3 | Laguna XS.2 | Result |
|---|---|---|---|
| LiveCodeBenchSource | 37.6% | — | Not comparable |
| SWE-bench VerifiedSource | 42% | 69.9% | Laguna XS.2 leads |
| AA Coding IndexSource | 23.0% | — | Not comparable |
| AA-SciCodeSource | 35.4% | — | Not comparable |
| SWE MultilingualSource | — | 57.7% | Not comparable |
| SWE-bench ProSource | — | 46.3% | Not comparable |
| Terminal-Bench 2.0Source | — | 35.7% | Not comparable |
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | DeepSeek V3 | Laguna XS.2 | Result |
|---|---|---|---|
| GPQASource | 59.1% | — | Not comparable |
| MMLU-ProSource | 75.9% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 14.2% | — | Not comparable |
| AA-GPQA DiamondSource | 55.7% | — | Not comparable |
| AA-HLESource | 3.6% | — | Not comparable |
| AA-Omniscience IndexSource | -41.3% | — | Not comparable |
| AA-Omniscience AccuracySource | 25.4% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 89.4% | — | Not comparable |
Math1 benchmarks
| Benchmark | DeepSeek V3 | Laguna XS.2 | Result |
|---|---|---|---|
| FrontierMath v2 (Tiers 1-3)Source | 1.724% | — | Not comparable |
Multimodal1 benchmarks
| Benchmark | DeepSeek V3 | Laguna XS.2 | Result |
|---|---|---|---|
| Design Arena WebsiteSource | 1145 | — | Not comparable |
Frequently Asked Questions (2)
Which is better, DeepSeek V3 or Laguna XS.2?
DeepSeek V3 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, DeepSeek V3 or Laguna XS.2?
Laguna XS.2 has the edge for coding in this comparison, averaging 60.8 versus 38.9. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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