Model comparison
Hy3 Preview vs Laguna S 2.1
Head-to-head evidence from 2 shared benchmark results across 2 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Evidence parity. Hy3 Preview and Laguna S 2.1 share 2 comparable benchmark results. 2 of 8 categories are comparable. 20 results are unique to Hy3 Preview; 4 to Laguna S 2.1.
Updated July 21, 2026- Shared results
- 2
- Hy3 Preview only
- 20
- Laguna S 2.1 only
- 4
- Comparable categories
- 2 / 8
Treat this as a split decision. Hy3 Preview makes more sense if you want the cheaper token bill; Laguna S 2.1 is the better fit if agentic is the priority or you need the larger 1M context window.
Confidence note. This is a partial-evidence comparison with 2 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
Hy3 Preview and Laguna S 2.1 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.
Laguna S 2.1 is also the more expensive model on tokens at $0.10 input / $0.20 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Hy3 Preview. That is roughly Infinityx on output cost alone. Laguna S 2.1 gives you the larger context window at 1M, compared with 256K for Hy3 Preview.
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 | Hy3 Preview | Δ | Laguna S 2.1 |
|---|---|---|---|
| Agentic | Hy3 Preview54.4 | Margin→ 15.8 | Laguna S 2.170.2 |
| Coding | Hy3 Preview57.8 | Margin→ 1.6 | Laguna S 2.159.4 |
| Knowledge | Hy3 Preview33.8 | MarginNo overlap | Laguna S 2.1Not measured |
| Inst. Following | Hy3 Preview63.1 | MarginNo overlap | Laguna S 2.1Not measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
Terminal-Bench 2.0
AgenticA 54.4%B 70.2%Winner: Laguna S 2.1Δ 15.8Terminal-Bench 2.0: Hy3 Preview scored 54.4%; Laguna S 2.1 scored 70.2%. Laguna S 2.1 wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Hy3 Preview | Laguna S 2.1 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Hy3 Preview$0 input / $0 output | Laguna S 2.1$0.1 input / $0.2 output | Hy3 Preview has the lower combined listed price. |
| Generation speedtokens per second | Hy3 PreviewNot available | Laguna S 2.1Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Hy3 PreviewNot available | Laguna S 2.1Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Hy3 Preview256K | Laguna S 2.11M | Laguna S 2.1 lists the larger context window. |
Benchmark Deep Dive
AgenticLaguna S 2.1 wins6 benchmarks
CodingLaguna S 2.1 wins8 benchmarks
| Benchmark | Hy3 Preview | Laguna S 2.1 | Result |
|---|---|---|---|
| SWE-bench VerifiedSource | 74.4% | — | Not comparable |
| Terminal-Bench 2.0Source | 54.4% | 70.2% | Laguna S 2.1 leads |
| SciCodeSource | 41.2% | — | Not comparable |
| AA-SciCodeSource | 47.6% | — | Not comparable |
| AA Coding IndexSource | 58.8% | — | Not comparable |
| SWE MultilingualSource | — | 78.5% | Not comparable |
| SWE-bench ProSource | — | 59.4% | Not comparable |
| deepSweSource | — | 40.4% | Not comparable |
Reasoning2 benchmarks
Knowledge9 benchmarks
| Benchmark | Hy3 Preview | Laguna S 2.1 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 41.2% | — | Not comparable |
| GPQASource | 87.2% | — | Not comparable |
| GPQA-DSource | 87.2% | — | Not comparable |
| HLESource | 25.5% | — | Not comparable |
| AA-Omniscience AccuracySource | 31.5% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 73.0% | — | Not comparable |
| AA-GPQA DiamondSource | 89.7% | — | Not comparable |
| AA-HLESource | 31.6% | — | Not comparable |
| AA-Omniscience IndexSource | -18.5% | — | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Hy3 Preview | Laguna S 2.1 | Result |
|---|---|---|---|
| IFBenchSource | 63.1% | — | Not comparable |
Frequently Asked Questions (3)
Which is better, Hy3 Preview or Laguna S 2.1?
Hy3 Preview and Laguna S 2.1 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, Hy3 Preview or Laguna S 2.1?
Laguna S 2.1 has the edge for coding in this comparison, averaging 59.4 versus 57.8. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Hy3 Preview or Laguna S 2.1?
Laguna S 2.1 has the edge for agentic tasks in this comparison, averaging 70.2 versus 54.4. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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