The Right-Sized LLM Benchmark Cheapest LLM that's good enough.

Gemini 3.1 Flash Lite at a glance

Good enough on 6/52 tasks at the 90% bar. Best value on 2 tasks. Doesn't qualify on any: Financial Analysis & Trading Decisions, Content Summarization & Synthesis, Long-form Content Generation, Social

Provider
Gemini
Model name
gemini-3.1-flash-lite
Cost mode:
Qualifies on
6 / 52 tasks (at 90% bar)
Best value on
2 tasks

Cost vs quality across all tasks

0%25%50%75%100%8910Quality score (8–10)Cost-efficiency vs best value (1.0 = best value)Engagement Reply Review — quality 9.80, this model IS the best-value good-enough option★S-1 TOC Extraction — quality 8.61, 1.2x the cost of the best-value good-enough optionLanguage Detection — quality 9.95, 1.4x the cost of the best-value good-enough optionEngagement Triage — quality 8.38, 1.6x the cost of the best-value good-enough optionX Post Selection — quality 8.47, 1.6x the cost of the best-value good-enough optionClaim Refinement — quality 8.47, this model IS the best-value good-enough option★

within ~1.3× of the best-value model · 1.3–2× · >2× · ★ this model is the best-value pick on that task. Top-right = best quadrant. Only tasks where this model qualifies at the 90% bar are plotted.

Per-task breakdown

TaskCategoryQuality (% of best)ConfidenceOverpay
Claim Refinement ★Infrastructure & Utility100%RANKEDbest value
Engagement Reply Review ★Relevance, Classification & Matching99%RANKEDbest value
S-1 TOC ExtractionStructured Data & Fact Extraction92%MEDIUM1.2x
Language DetectionRelevance, Classification & Matching99%RANKED1.4x
X Post SelectionRelevance, Classification & Matching97%HIGH1.6x
Engagement TriageRelevance, Classification & Matching94%RANKED1.6x

Overpay — how much more you pay by running this model instead of the best-value model that clears the quality bar on that task (marked ★). "16x" means you overpay 16× — the same output for 16× the best-value good-enough option; ★ means this model is that option (no overpayment). Confidence — how sure we are about the quality score (more judgments + more agreement = higher confidence): RANKED many independent judges scored this model's outputs and their agreement is very high (most confident) — HIGH many judges have scored it and they mostly agree (well-pinned) — MEDIUM enough judges have weighed in to publish, but they disagree more than we'd like (treat with a small grain of salt). LOW-confidence cells are hidden everywhere on the site. See the methodology for the exact thresholds.