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Easy Benchmarks

Tell us what you want to achieve. Easy Benchmarks turns current quality, price, and speed data into a simple shortlist.

Benchmark data is attributed to Artificial Analysis. Model metadata and catalog pricing may also use Vercel AI Gateway data when available.

Latest ReportBenchmark GlossaryMethodologyllms.txt

Best Models

Best AI Model for Largest Context Window

Grok 4.20 0309 v2 (Reasoning) is currently the highest-ranked model for Largest Context Window in the available data.

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Current Leader
Grok 4.20 0309 v2 (Reasoning)
Value
2,000,000 tokens
Dataset Coverage
264
Updated
Jul 16, 2026

How to use this result

  1. 1

    Start with the leader

    Use the top-ranked model as a starting point, not an automatic decision.

  2. 2

    Check the best alternatives

    Compare the top choices on price, speed, availability, and your own constraints.

  3. 3

    Verify the source

    Open the linked result page and methodology before quoting the ranking.

Top Models

Ranks language models by the largest context window exposed in current model metadata. Context size is not an intelligence score.

RankModelProviderValue
#1Grok 4.20 0309 v2 (Reasoning)SpaceXAI2,000,000 tokens
#2Grok 4.20 0309 v2 (Non-reasoning)SpaceXAI2,000,000 tokens
#3GPT-5.5 (Non-reasoning)OpenAI1,050,000 tokens
#4GPT-5.5 (medium)OpenAI1,050,000 tokens
#5GPT-5.6 Sol (Non-reasoning)OpenAI

Data & Evidence

Context-window size is model metadata, not a benchmark score. Easy Benchmarks uses matched catalog metadata and keeps the catalog links visible for verification.

Source: Model metadata from Artificial Analysis, OpenRouter, and Vercel AI Gateway. Updated: Jul 16, 2026.

View the live model dataView Artificial Analysis model dataOpen the Vercel AI Gateway model catalogOpen the OpenRouter model catalog

Related Pages

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1,050,000 tokens
#6GPT-5.6 Terra (high)OpenAI1,050,000 tokens
#7GPT-5.6 Luna (Non-reasoning)OpenAI1,050,000 tokens
#8GPT-5.5 (high)OpenAI1,050,000 tokens
#9GPT-5.6 Luna (xhigh)OpenAI1,050,000 tokens
#10GPT-5.6 Sol (high)OpenAI1,050,000 tokens
#11GPT-5.6 Terra (Non-reasoning)OpenAI1,050,000 tokens
#12GPT-5.6 Terra (xhigh)OpenAI1,050,000 tokens
#13GPT-5.5 Pro (xhigh)OpenAI1,050,000 tokens
#14GPT-5.6 Sol (max)OpenAI1,050,000 tokens
#15GPT-5.6 Sol (xhigh)OpenAI1,050,000 tokens
#16GPT-5.5 (xhigh)OpenAI1,050,000 tokens
#17GPT-5.6 Luna (low)OpenAI1,050,000 tokens
#18GPT-5.6 Terra (low)OpenAI1,050,000 tokens
#19GPT-5.6 Sol (low)OpenAI1,050,000 tokens
#20GPT-5.5 (low)OpenAI1,050,000 tokens