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

NVIDIA Nemotron-3 Ultra 550B at a glance

Good enough on 12/52 tasks at the 90% bar. Best value on 0 tasks. Best fit for: Long-form Content Generation, Relevance, Classification & Matching.

Provider
OpenRouter
Model name
nvidia/nemotron-3-ultra-550b-a55b
Cost mode:
Qualifies on
12 / 52 tasks (at 90% bar)
Best value on
0 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)Short Promotional Teaser Generation — quality 8.64, 17.4x the cost of the best-value good-enough optionMulti Perspective Decision Synthesis — quality 8.10, 8.4x the cost of the best-value good-enough optionPublication Title Package Generation — quality 8.27, 1.3x the cost of the best-value good-enough optionVisual Theme Configuration Generation — quality 8.95, 8.3x the cost of the best-value good-enough optionEngagement Opportunity Triage — quality 8.72, 15.1x the cost of the best-value good-enough optionLanguage Identification — quality 9.93, 13.2x the cost of the best-value good-enough optionSocial Post Portfolio Selection — quality 8.33, 9.6x the cost of the best-value good-enough optionFactual Claim Refinement — quality 8.08, 18.2x the cost of the best-value good-enough optionNewsletter Copy Generation — quality 9.06, 3.8x the cost of the best-value good-enough optionGenerated Content Relevance Scoring — quality 8.99, 5.6x the cost of the best-value good-enough optionThematic Topic Discovery — quality 8.15, 6.4x the cost of the best-value good-enough optionModel Specific Prompt Adaptation — quality 8.26, 3.8x the cost of 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
Publication Title Package GenerationContent Summarization & Synthesis90%HIGH1.3x
Newsletter Copy GenerationLong-form Content Generation97%RANKED3.8x
Model Specific Prompt AdaptationInfrastructure & Utility94%MEDIUM3.8x
Generated Content Relevance ScoringRelevance, Classification & Matching98%MEDIUM5.6x
Thematic Topic DiscoveryTopic Organization & Clustering96%MEDIUM6.4x
Visual Theme Configuration GenerationLong-form Content Generation95%HIGH8.3x
Multi Perspective Decision SynthesisFinancial Analysis & Trading Decisions92%MEDIUM8.4x
Social Post Portfolio SelectionRelevance, Classification & Matching95%MEDIUM9.6x
Language IdentificationRelevance, Classification & Matching99%RANKED13x
Engagement Opportunity TriageRelevance, Classification & Matching98%RANKED15x
Short Promotional Teaser GenerationSocial & Promotional Content98%RANKED17x
Factual Claim RefinementInfrastructure & Utility94%MEDIUM18x

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.