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CompareLLM.ai
Precision Benchmarks

Programmatic, dated AI model benchmarks, head-to-head comparisons, and Stack Engine presets.

Daily ingest · 06:00 UTC

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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

  1. Home
  2. Stack Engine
  3. long-context RAG
Deterministic Stack Engine

Best AI Stack for long-context RAG

Context window and input price for stuffing large corpora.

Objective Weight Distribution
Context:40%In $:25%Elo:20%TTFT:15%
Recommended PickScore 82.8 / 100

GPT-5.6 Luna

OpenAI · Closed flagship

context window p95input price per m p81elo p49ttft ms p98
Output: $0.6/1MSWE-bench: 61.8%
View full model fact sheet

Full Stack Leaderboard

Ranked alternatives optimized for long-context RAG based on objective benchmark weighting.

#2Llama 4 Scout(Meta)
Score 78.8
context windowP98input price per mP81eloP32ttft msP86
Rank #2 in stackvs #1
#3Gemini 3.7 Flash(Google)
Score 78.1
context windowP87input price per mP53eloP76ttft msP99
Rank #3 in stackvs #1
#4DeepSeek V4 Flash(DeepSeek)
Score 77.0
context windowP87input price per mP75eloP61ttft msP75
Rank #4 in stackvs #1
#5Gemini 2.0 Flash Thinking(Google)
Score 74.4
context windowP87input price per mP79eloP61ttft msP51
Rank #5 in stackvs #1
#6Gemini 3 Flash(Google)
Score 73.9
context windowP87input price per mP47eloP66ttft msP94
Rank #6 in stackvs #1
#7GPT-5.6 Terra(OpenAI)
Score 73.8
context windowP95input price per mP32eloP81ttft msP77
Rank #7 in stackvs #1
#8Gemini 3.6 Pro(Google)
Score 73.0
context windowP99input price per mP26eloP91ttft msP58
Rank #8 in stackvs #1
#9Llama 4 Maverick(Meta)
Score 73.0
context windowP87input price per mP68eloP51ttft msP73
Rank #9 in stackvs #1
#10Gemini 3.6 Flash(Google)
Score 72.3
context windowP87input price per mP38eloP68ttft msP96
Rank #10 in stackvs #1