Top recommendation

Best Long Context AI

Long-context AI matters when your work actually needs it. These picks are for teams reading huge docs, giant transcripts, and complex product context.

Last verified: June 2026

/Rankings refresh daily when model data changes

Rankings refresh dailyScored on 6 criteriaNo paid rankings

Best pick right now

GooglePremium

Gemini 3.1 Pro

Best for research and deep document analysis — 2M context at the best premium price.

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Cost in

$2.00/1M

Context

2M tokens

Speed

Balanced

Why it wins

The top long-context pick stays coherent across very large inputs.

Lower-cost alternatives help if you need more volume without flagship pricing.

The ranking rewards useful long-window reasoning, not just headline token counts.

Decision notes

Choose the top pick when long inputs and synthesis quality are equally important.

Choose a budget alternative if you need a large window without premium cost.

Choose a premium reasoning model if your context is large but not truly enormous.

Interactive decision lab

Tune the best long context ai ranking

Use the controls to see how the recommendation changes when your workflow shifts toward quality, cost, speed, or long-context work.

#1Claude Fable 591 pts

#2Claude Mythos 590 pts

#3Claude Opus 4.890 pts

#4GPT-5.587 pts

#5Gemini 3.1 Pro86 pts

Quality first

Claude Fable 5

Anthropic / Premium / Jun 9, 2026

New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.

Ranks models by the broadest mix of coding, writing, research, and long-context usefulness.

Cost

$10.00/1M

$50.00/1M out

Speed

Deliberate

2/100 score

Context

1M tokens

input window

View model

Data-backed recommendation

Avoid this pick if

You are latency- or cost-sensitive, or your tasks don't need frontier-level reasoning — Opus 4.8 at half the price is plenty.

Strengths

2M token context window — the largest of any frontier model

Leads ARC-AGI-2 reasoning benchmark at 77.1%

Best price-to-performance among premium models at $2/$12 per 1M tokens

Weaknesses

Slower than Flash for everyday lightweight tasks

Claude Sonnet 4.6 is better for writing quality

Ranked alternatives

Strong backups depending on your budget, workload, and preferred tradeoffs.

AnthropicPremium

Claude Fable 5

Anthropic's new Mythos-class flagship and the most capable coding model anyone can use — 80.3% SWE-Bench Pro, an 11-point jump over Opus 4.8. 1M context, 128K output, native parallel subagents. Released June 9, 2026.

Verdict

New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.

Quality score

98%

Pricing

$10.00/1M in

$50.00/1M out

Speed

Deliberate

Best for the hardest coding tasks, autonomous multi-step agents, and frontier-grade reasoning

Context

1M tokens

Launched June 9, 2026 as the public, Mythos-class release. Available on the Claude API, Microsoft Foundry, and Google Vertex AI. Free for all users until June 22, 2026. Same underlying model as Claude Mythos 5, with safeguards that block specific high-risk cyber responses.

Coding leaderSWE-Bench Pro #1Mythos-classParallel subagentsAgenticLong contextPremiumNew

Best for

The hardest coding tasks, autonomous multi-step agents, and frontier-grade reasoning

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AnthropicPremium

Claude Mythos 5

Anthropic's most powerful frontier model — the same underlying model as Fable 5 with safeguards lifted in some areas, restricted to vetted enterprise and research partners. The capability ceiling of mid-2026.

Verdict

The frontier ceiling — same model as Fable 5, safeguards lifted, partner-only.

Quality score

98%

Pricing

$10.00/1M in

$50.00/1M out

Speed

Deliberate

Best for frontier cybersecurity research, autonomous vulnerability discovery, and the absolute capability ceiling

Context

1M tokens

Launched June 9, 2026 alongside Fable 5, following the April Project Glasswing private preview on Google Cloud. Restricted to vetted enterprise and research partners due to advanced cybersecurity capabilities. Same underlying model and benchmarks as Claude Fable 5.

FrontierRestricted accessCybersecuritySWE-Bench Pro #1Mythos-classPremiumNew

Best for

Frontier cybersecurity research, autonomous vulnerability discovery, and the absolute capability ceiling

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AnthropicPremium

Claude Opus 4.8

Anthropic's newest Opus flagship — 69.2% SWE-Bench Pro, 88.6% SWE-Bench Verified, 1890 Arena Elo (121 pts ahead of GPT-5.5), and native parallel subagents. Same $5/$25 price as Opus 4.7.

Verdict

Best value premium coder — frontier-grade at half of Fable 5's price.

Quality score

97%

Pricing

$5.00/1M in

$25.00/1M out

Speed

Deliberate

Best for hardest coding tasks, parallel agentic workflows, and high-fidelity vision

Context

1M tokens

Launched May 27, 2026. Available on Claude API, AWS Bedrock, Google Vertex AI, Microsoft Foundry, and GitHub Copilot. Fast mode available at $10/$50 per 1M tokens.

CodingParallel subagentsAgenticLong contextPremiumBest value premium

Best for

Hardest coding tasks, parallel agentic workflows, and high-fidelity vision

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OpenAIPremium

GPT-5.5

OpenAI's latest agentic flagship for coding, research, computer-use workflows, and long multi-step knowledge work.

Verdict

Best OpenAI flagship for agentic coding, research, and computer-use work.

Quality score

94%

Pricing

$5.00/1M in

$30.00/1M out

Speed

Balanced

Best for agentic coding, computer-use workflows, and complex research tasks

Context

1M tokens

Ranked from public benchmark and pricing data verified April 26, 2026: SWE-Bench Pro 58.6%, Terminal-Bench 2.0 82.7%, $5/$30 per 1M tokens, 1M API context.

AgenticCodingComputer useLong contextPremium

Best for

Agentic coding, computer-use workflows, and complex research tasks

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How we evaluate AI models

UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.

Explore related decisions

Browse all models Compare pricing View Gemini 3.1 Pro Best AI for Coding Best AI for Writing Best AI for Research Best AI for Images

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FAQ

What is the current top pick for best long context ai?

Gemini 3.1 Pro is the current top recommendation because it delivers the strongest mix of fit, output quality, and practical usefulness for this category.

What if I need a cheaper option?

Llama 4 Scout is the strongest lower-cost alternative when you want better value without dropping all the way down in usefulness.

How should I choose between the top recommendation and the alternatives?

Choose the top pick when you want the safest default. Choose an alternative when your priority shifts toward cost, speed, context window, or a more specialized workflow fit.

Which AI is cheapest for this kind of workflow?

Llama 4 Scout is the cheapest strong alternative here if you want better value without dropping to a weak default.

Best Long Context AI

Long-context AI matters when your work actually needs it. These picks are for teams reading huge docs, giant transcripts, and complex product context.

Last verified: June 2026

/Rankings refresh daily when model data changes

Rankings refresh dailyScored on 6 criteriaNo paid rankings

Best pick right now

GooglePremium

Gemini 3.1 Pro

Best for research and deep document analysis — 2M context at the best premium price.

View model

Cost in

$2.00/1M

Context

2M tokens

Speed

Balanced

Why it wins

The top long-context pick stays coherent across very large inputs.

Lower-cost alternatives help if you need more volume without flagship pricing.

The ranking rewards useful long-window reasoning, not just headline token counts.

Decision notes

Choose the top pick when long inputs and synthesis quality are equally important.

Choose a budget alternative if you need a large window without premium cost.

Choose a premium reasoning model if your context is large but not truly enormous.