Models·Model board

Longest-Context Models in 2026

This board covers models built to handle long amounts of text in one request. Use the context-window figure in each title to compare capacity, then check the model name and maker.

The signal score is out of 10. API, open-source and free-tier marks show which access options are listed for each model. Check those marks against the apps you already use.

  • 466 models
  • Checked 16 Oct 2026
  1. 1
    O
    Auto Routeropenrouter · vision
    Variesin / 1M Variesout / 1M 2M context
  2. 2
    O
    Auto Router (Beta)openrouter · vision
    Variesin / 1M Variesout / 1M 2M context
  3. 3
    S
    Grok 4.20SpaceXAI · reasoning · vision
    $1.25in / 1M $2.50out / 1M 2M context
  4. 4
    S
    Grok 4.20 Multi-AgentSpaceXAI · reasoning · vision
    $1.25in / 1M $2.50out / 1M 2M context
  5. 5
    O
    Variesin / 1M Variesout / 1M 2M context
  6. 6
    M
    Llama 4 ScoutMeta · vision
    $0.10in / 1M $0.30out / 1M 1.31M context
  7. 7
    O
    GPT-5.4OpenAI · reasoning · vision
    $2.50in / 1M $15out / 1M 1.05M context
  8. 8
    O
    GPT-5.4 (batch)OpenAI · reasoning · vision
    $1.25in / 1M $7.50out / 1M 1.05M context
  9. 9
    O
    GPT-5.4 ProOpenAI · reasoning · vision
    $30in / 1M $180out / 1M 1.05M context
  10. 10
    O
    GPT-5.4 Pro (batch)OpenAI · reasoning · vision
    $15in / 1M $90out / 1M 1.05M context
  11. 11
    O
    GPT-5.5OpenAI · reasoning · vision
    $5in / 1M $30out / 1M 1.05M context
  12. 12
    O
    GPT-5.5 (batch)OpenAI · reasoning · vision
    $2.50in / 1M $15out / 1M 1.05M context
  13. 13
    O
    GPT-5.5 ProOpenAI · reasoning · vision
    $30in / 1M $180out / 1M 1.05M context
  14. 14
    O
    GPT-5.5 Pro (batch)OpenAI · reasoning · vision
    $15in / 1M $90out / 1M 1.05M context
  15. 15
    O
    GPT-5.6 LunaOpenAI · reasoning · vision
    $0.20in / 1M $1.20out / 1M 1.05M context
  16. 16
    O
    GPT-5.6 Luna (batch)OpenAI · reasoning · vision
    $0.10in / 1M $0.60out / 1M 1.05M context
  17. 17
    O
    GPT-5.6 Luna ProOpenAI · reasoning · vision
    $0.20in / 1M $1.20out / 1M 1.05M context
  18. 18
    O
    GPT-5.6 Luna Pro (batch)OpenAI · reasoning · vision
    $0.10in / 1M $0.60out / 1M 1.05M context
  19. 19
    O
    GPT-5.6 SolOpenAI · reasoning · vision
    $2in / 1M $10out / 1M 1.05M context
  20. 20
    O
    GPT-5.6 Sol (batch)OpenAI · reasoning · vision
    $1in / 1M $5out / 1M 1.05M context
  21. 21
    O
    GPT-5.6 Sol ProOpenAI · reasoning · vision
    $4in / 1M $20out / 1M 1.05M context
  22. 22
    O
    GPT-5.6 Sol Pro (batch)OpenAI · reasoning · vision
    $1in / 1M $5out / 1M 1.05M context
  23. 23
    O
    GPT-5.6 TerraOpenAI · reasoning · vision
    $2in / 1M $12out / 1M 1.05M context
  24. 24
    O
    GPT-5.6 Terra (batch)OpenAI · reasoning · vision
    $1in / 1M $6out / 1M 1.05M context
  25. 25
    O
    GPT-5.6 Terra ProOpenAI · reasoning · vision
    $2in / 1M $12out / 1M 1.05M context

How to choose

Compare the context figure

Start with the context-window figure in the title. It indicates how much text the model can handle in one request, so compare it with the size of the material your app needs to send.

Check how you can access it

Use the API, open-source and free-tier marks to see which access paths are listed. Confirm that the option fits the software you already use before choosing a model.

Treat each named variant separately

The list includes distinct names such as GPT-5.4, GPT-5.4 Pro and their batch versions. Auto Router and Auto Router (Beta) are also separate entries, as are Grok 4.20 and Grok 4.20 Multi-Agent.

Check the release date

Release dates help distinguish versions that share a family. Entries here include Llama 4 Scout from Meta, GPT-5.5 from OpenAI and models from SpaceXAI and OpenRouter.

Questions

What does a long context window mean?

It is the amount of text a model can handle in one request. Compare the context-window figure shown with each model.

Are batch and standard models the same entry?

No. Names such as GPT-5.4 and GPT-5.4 (batch) appear as separate models on the list.

What is Auto Router?

Auto Router is an OpenRouter model entry. Auto Router (Beta) is listed separately, with a release date of July 17, 2026.

Which makers appear on this board?

The listed makers include OpenRouter, SpaceXAI, Meta and OpenAI.

Prices are each provider’s published price per million tokens. How we rank · Disclosure