QUICK VERDICT — JULY 30, 2026
● SWE-bench Pro: Fable 5 — 80.4% #1 vs Laguna 59.4%
● Price: Laguna — $0.10/$0.20/M vs Fable 5 $10/$50/M (100× cheaper input)
● Terminal-Bench 2.1: Laguna — 70.2% vs Fable 5 83.8% in Claude Code
● Open weights: Laguna only — self-hostable on DGX Spark
● Regulatory risk: Laguna — none. Fable 5 — had export control suspension (resolved).
● Context: Both 1M tokens
Use Laguna S 2.1 for: High-volume coding workloads where the 59.4% SWE-bench Pro score is sufficient (roughly comparable to where GPT-4 was on SWE-bench in 2025), where self-hosting is valuable, and where 100× lower cost changes the economics of your use case fundamentally.
Use Fable 5 for: Production code changes where SWE-bench Pro 80.4% accuracy is specifically required and independently verified. If your engineering team has validated that the 21-point SWE-bench gap translates to meaningfully fewer bugs in your codebase — and it likely does — the $10/M premium is justified for critical production work.
Last updated July 30, 2026. Related: Laguna S 2.1 full review →