LLM Reference

Best Long Context LLMs (2026)

Last refreshed 2026-07-11. Next refresh: weekly.

LLMs with the largest context windows in 2026 — from 128K to 2M tokens. Ranked by window size with pricing and retrieval accuracy.

New release-watch entry: Gemini 3.5 Pro is tracked with a 2M-token context window while it remains in preview.

Verdict

Use Llama 4 Scout 17B-16E Instruct for long-context work today.

MiniMax-01 is the runner-up: 10m vs 4m on Context.

Researched 36d 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-16E Instruct
Vision
$0.08$0.22
11LTM-1
12MiniMax-01
Vision
$0.20$1.10
13Gemini 3.5 Pro
PreviewReasoningVision
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-5.6 Sol
ReasoningVisionTools
$5.00$30.00
19GPT-5.6 Terra
ReasoningVisionTools
$2.50$15.00
20GPT-5.6 Luna
ReasoningVisionTools
$1.00$6.00
21GPT-5.5
ReasoningVisionTools
$5.00$30.00
22GPT-5.5 Pro
ReasoningVisionTools
$30.00$180.00
23GPT-5.4
ReasoningVisionTools
$2.50$15.00
24GPT-5.4 Pro
ReasoningVisionTools
$30.00$180.00
25Gemini 3.5 Flash
ReasoningVisionTools
$1.50$9.00
26Antigravity Agent
PreviewReasoningVision
27Gemini 3.1 Flash-Lite
VisionTools
$0.25$1.50
28Xiaomi MiMo-V2.5-Pro
Tools
$0.43$0.87
29Xiaomi MiMo-V2.5
ReasoningVisionTools
$0.14$0.28
30Nemotron-Cascade-2-30B-A3B
31MiMo-V2-Pro
$1.00$3.00
32Nemotron 3 Super-120B-A12B
$0.09$0.45
33Gemini 2.5 Pro Computer Use Preview
PreviewVisionTools
$1.25$10.00
34Llama 3 70B Gradient 1048K
35GPT-4.1
VisionTools
$2.00$8.00
36GPT-4.1 Mini
VisionTools
$0.40$1.60
37Muse Spark 1.1
ReasoningVisionTools
$1.25$4.25
38Claude Sonnet 5
ReasoningVisionTools
$2.00$10.00
39LongCat-2.0
ReasoningTools
$0.75$2.95
40GLM-5.2
ReasoningTools
$1.40$4.40

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.

  • OpenAI's balanced mid-tier GPT-5.6 model. Terra delivers performance competitive with GPT-5.5 at about 2x lower cost, suited for high-volume production workloads such as customer support, document analysis, and internal tooling. Generally available July 9, 2026 across ChatGPT, Codex, and the OpenAI API (model ID gpt-5.6-terra). Supports text and image inputs, reasoning, tool use, prompt caching, and Batch API with a 1,050,000-token context window and 128K max output.

    1.05m

    Context

  • OpenAI's fast, low-cost GPT-5.6 model. Luna is the affordable tier in the Sol, Terra, and Luna lineup, optimized for latency-sensitive applications such as summarization, drafting, autocomplete, and routine automation. Generally available July 9, 2026 across ChatGPT, Codex, and the OpenAI API (model ID gpt-5.6-luna). Supports text and image inputs, reasoning, tool use, prompt caching, and Batch API with a 1,050,000-token context window and 128K max output.

    1.05m

    Context

  • GPT-5.5 is OpenAI's fully retrained agentic model, released April 23, 2026. Optimised for agentic coding, computer use, knowledge work, and early scientific research. Achieves 82.7% on Terminal-Bench 2.0 (Codex CLI scaffold), 84.9% on GDPval, 58.6% on SWE-Bench Pro, 93.6% on GPQA Diamond, and 82.6% on SWE-Bench Verified (Vals.ai independent harness). Knowledge cutoff December 2025. Supports reasoning effort levels (none/low/medium/high/xhigh). Context window 1,050,000 tokens with a long-context surcharge above 272K tokens. Model ID: gpt-5.5.

    1.05m

    Context

Frequently asked questions

Which LLM is best for long-context work?

Llama 4 Scout 17B-16E Instruct is the current LLMReference top pick for long-context work. The verdict uses the stored category signal Context: 10m. Output pricing starts at $0.22 per 1M tokens. Review the linked model and provider pages before production use because availability and pricing can change.

How does Llama 4 Scout 17B-16E Instruct compare to MiniMax-01 for long-context work?

Llama 4 Scout 17B-16E Instruct leads MiniMax-01 in the visible shortlist on Context: 10m versus 4m. The pricing cards show Llama 4 Scout 17B-16E Instruct: output pricing starts at $0.22 per 1m tokens and MiniMax-01: output pricing starts at $1.10 per 1m tokens.

How does LLMReference rank LLMs for long-context work?

LLMReference ranks LLMs for long-context work from stored model, benchmark, freshness, and pricing data. The current methodology summary is: 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.

How often is this list updated?

The LLM rankings on this page are updated daily as new benchmark scores, provider availability, and pricing data are tracked. The "as of" date at the top of the page shows the most recent refresh.

How do you decide which models appear in the top 3?

The podium picks are driven by the primary benchmark signal for this category (shown in the Methodology section), filtered to non-deprecated models with confirmed API availability. In ties, we prefer the more recently released model.

Are preview or beta models included?

Preview models appear in the "Watch list" section but are not in the main ranked podium unless the category explicitly allows it (e.g., /best/coding and /best/agents, where preview models often lead benchmarks).

Can I compare two specific models head-to-head?

Yes — use the Compare tool at llmreference.com/compare for a side-by-side breakdown of context window, pricing, benchmarks, and provider availability.

Is the pricing data real-time?

Pricing is tracked from provider documentation and updated regularly. It reflects the best available public data, not live API quotes — always verify before billing.