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

GPT-5.6 Terra at a glance

Good enough on 30/52 tasks at the 90% bar. Best value on 0 tasks. Best fit for: Structured Data & Fact Extraction, Long-form Content Generation, Social & Promotional Content, Content Summarization & S

Provider
OpenAI
Model name
gpt-5.6-terra
Cost mode:
Qualifies on
30 / 52 tasks (at 90% bar)
Best value on
0 tasks

Cost vs quality across all tasks

0%25%50%75%100%78910Quality score (7–10)Cost-efficiency vs best value (1.0 = best value)Report Executive Summary Generation — quality 7.95, 3.2x the cost of the best-value good-enough optionShort Post Batch Relevance Scoring — quality 7.22, 12.8x the cost of the best-value good-enough optionPublic Response Generation — quality 8.24, 7.9x the cost of the best-value good-enough optionReference Preserving Analytical Writing — quality 8.74, 5.8x the cost of the best-value good-enough optionShort Promotional Teaser Generation — quality 8.34, 7.0x the cost of the best-value good-enough optionProfiled Document Structure Extraction — quality 8.79, 2.3x the cost of the best-value good-enough optionContent Set Relevance Scoring — quality 7.01, 5.8x the cost of the best-value good-enough optionMulti Perspective Decision Synthesis — quality 8.13, 9.7x the cost of the best-value good-enough optionTopic Section Assignment — quality 7.99, 7.9x the cost of the best-value good-enough optionVisual Theme Configuration Generation — quality 8.75, 11.6x the cost of the best-value good-enough optionCommunity Policy Evaluation — quality 9.24, 7.8x the cost of the best-value good-enough optionResearch Community Selection — quality 8.02, 11.6x the cost of the best-value good-enough optionReport Outline Generation — quality 9.48, 10.1x the cost of the best-value good-enough optionEngagement Opportunity Triage — quality 8.45, 10.3x the cost of the best-value good-enough optionLanguage Identification — quality 9.99, 10.9x the cost of the best-value good-enough optionSocial Post Portfolio Selection — quality 8.57, 9.6x the cost of the best-value good-enough optionVoice Profile Generation — quality 8.96, 10.8x the cost of the best-value good-enough optionBatch Text Translation — quality 8.98, 14.2x the cost of the best-value good-enough optionTopic Taxonomy Matching — quality 8.31, 16.6x the cost of the best-value good-enough optionContent To Image Prompt Generation — quality 8.97, 9.0x the cost of the best-value good-enough optionProfiled Document Section Analysis — quality 8.72, 18.0x the cost of the best-value good-enough optionGenerated Content Relevance Scoring — quality 9.14, 7.1x the cost of the best-value good-enough optionPromotional Message Generation — quality 8.34, 4.5x the cost of the best-value good-enough optionStructured Content Summarization — quality 8.34, 6.0x the cost of the best-value good-enough optionThematic Topic Discovery — quality 8.18, 10.3x the cost of the best-value good-enough optionStructured Output Extraction — quality 8.84, 18.2x the cost of the best-value good-enough optionSection Prompt Generation — quality 8.48, 11.5x the cost of the best-value good-enough optionModel Specific Prompt Adaptation — quality 8.30, 5.6x the cost of the best-value good-enough optionResearch Query Generation — quality 8.15, 11.4x the cost of the best-value good-enough optionPersona Policy Eligibility Check — quality 8.79, 11.8x 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
Profiled Document Structure ExtractionStructured Data & Fact Extraction93%HIGH2.3x
Report Executive Summary GenerationContent Summarization & Synthesis91%HIGH3.2x
Promotional Message GenerationSocial & Promotional Content96%RANKED4.5x
Model Specific Prompt AdaptationInfrastructure & Utility94%MEDIUM5.6x
Reference Preserving Analytical WritingLong-form Content Generation95%HIGH5.8x
Content Set Relevance ScoringRelevance, Classification & Matching99%HIGH5.8x
Structured Content SummarizationContent Summarization & Synthesis90%RANKED6x
Short Promotional Teaser GenerationSocial & Promotional Content95%RANKED7x
Generated Content Relevance ScoringRelevance, Classification & Matching100%HIGH7.1x
Community Policy EvaluationRelevance, Classification & Matching100%MEDIUM7.8x
Topic Section AssignmentTopic Organization & Clustering92%MEDIUM7.9x
Public Response GenerationSocial & Promotional Content97%HIGH7.9x
Content To Image Prompt GenerationInfrastructure & Utility100%RANKED9x
Social Post Portfolio SelectionRelevance, Classification & Matching98%RANKED9.6x
Multi Perspective Decision SynthesisFinancial Analysis & Trading Decisions92%HIGH9.7x
Report Outline GenerationLong-form Content Generation98%RANKED10x
Thematic Topic DiscoveryTopic Organization & Clustering96%MEDIUM10x
Engagement Opportunity TriageRelevance, Classification & Matching95%RANKED10x
Voice Profile GenerationLong-form Content Generation91%RANKED11x
Language IdentificationRelevance, Classification & Matching99%RANKED11x
Research Query Generation bestInfrastructure & Utility100%HIGH11x
Section Prompt GenerationInfrastructure & Utility99%MEDIUM12x
Research Community Selection bestRelevance, Classification & Matching100%HIGH12x
Visual Theme Configuration GenerationLong-form Content Generation93%HIGH12x
Persona Policy Eligibility CheckRelevance, Classification & Matching95%HIGH12x
Short Post Batch Relevance ScoringRelevance, Classification & Matching95%MEDIUM13x
Batch Text TranslationInfrastructure & Utility96%RANKED14x
Topic Taxonomy MatchingRelevance, Classification & Matching98%HIGH17x
Profiled Document Section AnalysisFinancial Analysis & Trading Decisions96%RANKED18x
Structured Output ExtractionStructured Data & Fact Extraction90%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.