Claude Fable 5.1 vs Laguna S 2.1: Specs & Benchmark Comparison
| Characteristic | Claude Fable 5.1 | Laguna S 2.1 |
|---|---|---|
| Company | Anthropic | Poolside |
| Release Date | September 1, 2026 | July 21, 2026 |
| Parameters | — | 118B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 128K | — |
| Input Price / 1M | $10.00 | $0.10 |
| Output Price / 1M | $50.00 | $0.20 |
| Average Score | 0.6 | 0.6 |
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: Claude Fable 5.1 — 0.6, Laguna S 2.1 — 0.6.
API Cost
Laguna S 2.1 is 200.0x cheaper: input $0.10/1M vs $10.00/1M tokens.
Context Window
Same context size: 1M tokens.
Recency
Claude Fable 5.1 is newer: released 9/1/2026 vs 7/21/2026.
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Frequently Asked Questions
Which is better for coding — Claude Fable 5.1 or Laguna S 2.1?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Fable 5.1 or Laguna S 2.1?
Laguna S 2.1 is cheaper for input: $0.10 per 1M tokens vs $10.00.
Which has a larger context window — Claude Fable 5.1 or Laguna S 2.1?
Claude Fable 5.1 supports a larger context: 1,048,576 tokens vs 1,048,576.
The Claude Fable 5.1 and Laguna S 2.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Fable 5.1 or Laguna S 2.1 page. See also the complete list of AI model comparisons.