LLM Reference

Best Long Context LLMs (2026)

Last refreshed 2026-05-29. Next refresh: weekly.

AI models with the largest context windows for processing long documents, codebases, and extended conversations. Sorted by context window size.

Verdict

Use Llama 4 Scout 17B for long-context work today.

Llama 4 Scout 17B Instruct is the runner-up: 10m vs 10m on Context.

Researched 42d agoWhy this pickMethodology

How we rank

Long-context leaders sort by the widest shipped context window first, then recency — benchmarks matter, but literal window size is the gate for this category.

  1. EligibilityModels with ≥128k tokens of declared context and not deprecated.
  2. Primary rankingLarger parsed context wins; newer release on ties.
  3. Variant collapseWe keep one row per model family (`familySlug` + parameter tier). When headline scores tie within ±0.5 pt (±10 Elo on Chatbot Arena), we pick the canonical SKU by lowest tracked input price, then GA over preview or limited access, then newest `release`. A folded sibling within the benchmark noise band can show a "Tied within margin" chip on that score cell.
  4. PricingLowest tracked provider rates where available.
#ModelInput $/1MOutput $/1M
1RWKV-7 Goose 2.9B
2RWKV-7 Goose 1.5B
3RWKV-7 Goose 0.4B
4RWKV-7 Goose 0.1B
5RWKV-6 Finch 14B
6RWKV-6 Finch 7B
7RWKV-6 Finch 3B
8RWKV-6 Finch 1.6B
9LTM-2-mini
10Llama 4 Scout 17B
$0.17$0.66
11Llama 4 Scout 17B Instruct
$0.17$0.66
12LTM-1
13Grok 4.20 Multi-Agent
ReasoningVisionTools
$1.25$2.50
14Gemini 1.5 Pro 002
15Gemini 1.5 Pro Experimental 0827
16Gemini 1.5 Pro Experimental 0801
17Gemini 1.5 Pro
$1.25$5.00
18GPT-5.5
ReasoningVisionTools
$5.00$30.00
19GPT-5.5 Pro
ReasoningVisionTools
$30.00$180.00
20GPT-5.4
ReasoningTools
$2.50$15.00
21GPT-5.4 Pro
ReasoningVisionTools
$30.00$180.00
22Gemini 3.5 Flash
ReasoningVisionTools
$1.50$9.00
23Antigravity Agent
PreviewReasoningVision
24Gemini 3.1 Flash-Lite
VisionTools
$0.25$1.50
25Xiaomi MiMo-V2.5-Pro
Tools
$0.43$0.87
26Xiaomi MiMo-V2.5
ReasoningVisionTools
$0.14$0.28
27Nemotron-Cascade-2-30B-A3B
28MiMo-V2-Pro
$1.00$3.00
29Nemotron 3 Super-120B-A12B
$0.09$0.45
30Gemini 2.5 Pro Computer Use Preview
PreviewVisionTools
$1.25$10.00
31Llama 3 70B Gradient 1048K
32GPT-4.1
VisionTools
$2.00$8.00
33GPT-4.1 Mini
VisionTools
$0.40$1.60
34Claude Opus 4.8
ReasoningVisionTools
$5.00$25.00
35Qwen3.7-Max
ReasoningTools
$1.25$3.75
36Composer 2.5
Tools
$0.50$2.50
37Grok 4.3
ReasoningVisionTools
$1.25$2.50
38SubQ 1M-Preview
PreviewReasoningTools
39DeepSeek V4 Flash
ReasoningTools
$0.11$0.22
40DeepSeek V4 Pro
ReasoningTools
$0.43$0.87

Honorable mentions

Next seats in this ranking. Lines below are from each model's stored description in LLMReference seed data—spot-check the model page before relying on a capability claim.

  • Stable Gemini 1.5 Pro release (February variant) optimized for complex reasoning and high-quality multimodal analysis. Supports 2M context for extended document and video processing.

    2m

    Context

  • Updated Pro experimental variant with refinements to reasoning depth and creative task performance.

    2m

    Context

  • Experimental Pro variant with enhanced reasoning and multimodal understanding for complex problem-solving tasks.

    2m

    Context