Search Intent · best llm for rag
Best LLM for RAG in 2026
Context window and input list price first. For stuffing corpora, not for coding agents.
Weights:Context 40%In $ 25%Elo 20%TTFT 15%
Current #1 Ranked PickScore 82.8 / 100
GPT-5.6 Luna
OpenAI · Closed flagship
context window p95input price per m p81elo p49ttft ms p98
SWE-bench: 61.8%Elo: 1,466
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Models ranked by verified benchmark weights across SWE-bench and coding preference evaluations.
Score 82.8
context windowP95input price per mP81eloP49ttft msP98
🏆 #1 Overall Leader in Category
Frequently asked questions
Plain-English methodology and leaderboard answers
- GPT-5.6 Luna is the current #1 on this list. Rankings move when daily ingest updates SWE-bench, Elo, price, or latency.