Laguna S 2.1 vs Seed 2.1 Pro: Specs & Benchmark Comparison
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| Characteristic | Laguna S 2.1 | Seed 2.1 Pro |
|---|---|---|
| Company | Poolside | ByteDance |
| Release Date | July 21, 2026 | June 24, 2026 |
| Parameters | 118B | — |
| Multimodal | No | Yes |
| Context (input) | 1.0M | — |
| Input Price / 1M | $0.10 | — |
| Output Price / 1M | $0.20 | — |
| Average Score | 0.6 | 0.6 |
| Benchmarks | ||
| SWE-Bench Pro | 0.6 | 0.6 |
| Toolathlon | 0.5 | 0.5 |
| Terminal-Bench 2.1 | 0.7 | 0.7 |
Visual Benchmark Comparison
Laguna S 2.1
Seed 2.1 Pro
SWE-Bench Pro0.6 vs 0.6
0.6
0.6
Toolathlon0.5 vs 0.5
0.5
0.5
Terminal-Bench 2.10.7 vs 0.7
0.7
0.7
Verdict
Laguna S 2.1 leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Laguna S 2.1 — 0.6, Seed 2.1 Pro — 0.6.
Recency
Laguna S 2.1 is newer: released 7/21/2026 vs 6/24/2026.
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Frequently Asked Questions
Which is better for coding — Laguna S 2.1 or Seed 2.1 Pro?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Laguna S 2.1 or Seed 2.1 Pro?
API pricing data is available on the individual model pages.
Which has a larger context window — Laguna S 2.1 or Seed 2.1 Pro?
Context window data is available on the individual model pages.
The Laguna S 2.1 and Seed 2.1 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Laguna S 2.1 or Seed 2.1 Pro page. See also the complete list of AI model comparisons.