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LLMs with the largest context windows

1,040 models publish a context window across the gateways tracked here, and 454 of them accept a million tokens or more. The largest is Auto Router at 2M.

Models by context window
1M or more
454
200K – 1M
338
128K – 200K
165
32K – 128K
52
Under 32K
31
ModelVendorTypeAvailable onContextInput / Mtok
Auto Router auto Image CloudflareLLM GatewayOpenRouter 2M Free
Auto Router (Beta) auto-beta Image OpenRouter 2M
Grok 4.20 Non-Reasoning azure-openai/grok-4-20-non-reasoning xAI Multimodal LLM Gateway 2M $1.25
Grok 4.20 Reasoning azure-openai/grok-4-20-reasoning xAI Multimodal LLM Gateway 2M $1.25
Pareto Code Router pareto-code Text OpenRouter 2M
grok-4-1-fast-non-reasoning x-ai/grok-4-1-fast-non-reasoning xAI Multimodal CloudflareRequesty 2M $0.200
grok-4-1-fast-reasoning x-ai/grok-4-1-fast-reasoning xAI Multimodal CloudflareRequesty 2M $0.200
grok-4-fast x-ai/grok-4-fast xAI Text CloudflareRequesty 2M $0.200
grok-4-fast-non-reasoning x-ai/grok-4-fast-non-reasoning xAI Text CloudflareRequesty 2M $0.200
grok-4.2-beta x-ai/grok-4.2-beta xAI Multimodal Requesty 2M $2.00
Grok 4.20 x-ai/grok-4.20 xAI Multimodal CloudflareOpenRouter 2M $1.25
Grok 4.20 Multi-Agent x-ai/grok-4.20-multi-agent xAI Multimodal CloudflareOpenRouterVercel 2M $1.25
Grok 4.20 Multi Agent Beta x-ai/grok-4.20-multi-agent-beta xAI Text CloudflareVercel 2M $1.25
Grok 4.20 Non-Reasoning x-ai/grok-4.20-non-reasoning xAI Text Vercel 2M $1.25
Grok 4.20 Beta Non-Reasoning x-ai/grok-4.20-non-reasoning-beta xAI Text Vercel 2M $1.25
Grok 4.20 Reasoning x-ai/grok-4.20-reasoning xAI Text Vercel 2M $1.25
Grok 4.20 Beta Reasoning x-ai/grok-4.20-reasoning-beta xAI Text Vercel 2M $1.25
DeepSeek V4 Flash 0731 deepseek/deepseek-v4-flash-0731 DeepSeek Text CloudflareOpenRouterOrcaRouterRequestyVercel 1.3M $0.065$0.440
DeepSeek V4 Flash Latest deepseek/deepseek-v4-flash-latest DeepSeek Text CloudflareOpenRouter 1.3M $0.050
Llama 4 Scout meta-llama/llama-4-scout Meta Multimodal CloudflareOpenRouterVercel 1.3M $0.100$0.170
GLM 5.3 z-ai/glm-5.3 Z.ai Text CloudflareOpenRouterOrcaRouterRequestyVercel 1.3M $1.26$1.40
GLM 5.3 Flash z-ai/glm-5.3-flash Z.ai Multimodal CloudflareOpenRouterOrcaRouterRequestyVercel 1.3M $0.070$0.150
GLM Flash Latest z-ai/glm-flash-latest Z.ai Multimodal CloudflareOpenRouter 1.3M $0.070
GLM Latest z-ai/glm-latest Z.ai Text CloudflareOpenRouter 1.3M $1.11
gpt-6-astra@eastus2 azure-responses/gpt-6-astra@eastus2 Azure Responses Multimodal Requesty 1.1M $10.00
gpt-5.6-luna gpt-5.6-luna OpenAI Multimodal OrcaRouter 1.1M $0.200
GPT-5.4 openai/gpt-5.4 OpenAI Multimodal CloudflareOpenRouterOrcaRouterRequestyVercel 1.1M $2.50
gpt-5.4-2026-03-05 openai/gpt-5.4-2026-03-05 OpenAI Multimodal OrcaRouter 1.1M $2.50
GPT 5.4 (Fast) openai/gpt-5.4-fast OpenAI Text Vercel 1.1M $5.00
GPT-5.4 Pro openai/gpt-5.4-pro OpenAI Multimodal CloudflareOpenRouterOrcaRouterRequestyVercel 1.1M $30.00
gpt-5.4-pro-2026-03-05 openai/gpt-5.4-pro-2026-03-05 OpenAI Multimodal OrcaRouter 1.1M $30.00
GPT-5.4 Pro (batch) openai/gpt-5.4-pro:batch OpenAI Multimodal CloudflareOpenRouter 1.1M $15.00
gpt-5.4-pro@eastus2 openai/gpt-5.4-pro@eastus2 OpenAI Multimodal Requesty 1.1M $30.00
GPT-5.4 (batch) openai/gpt-5.4:batch OpenAI Multimodal CloudflareOpenRouter 1.1M $1.25
gpt-5.4:flex openai/gpt-5.4:flex OpenAI Multimodal Requesty 1.1M $1.25
gpt-5.4@eastus2 openai/gpt-5.4@eastus2 OpenAI Multimodal Requesty 1.1M $2.50
gpt-5.4@francecentral openai/gpt-5.4@francecentral OpenAI Multimodal Requesty 1.1M $2.50
gpt-5.4@germanywestcentral openai/gpt-5.4@germanywestcentral OpenAI Multimodal Requesty 1.1M $2.50
gpt-5.4@swedencentral openai/gpt-5.4@swedencentral OpenAI Multimodal Requesty 1.1M $2.50
gpt-5.4@us-east-1 openai/gpt-5.4@us-east-1 OpenAI Multimodal Requesty 1.1M $2.75
gpt-5.4@us-east-2 openai/gpt-5.4@us-east-2 OpenAI Multimodal Requesty 1.1M $2.75
gpt-5.4@us-west-2 openai/gpt-5.4@us-west-2 OpenAI Multimodal Requesty 1.1M $2.75
gpt-5.4@westeurope openai/gpt-5.4@westeurope OpenAI Multimodal Requesty 1.1M $2.50
GPT-5.5 openai/gpt-5.5 OpenAI Multimodal CloudflareOpenRouterOrcaRouterRequestyVercel 1.1M $5.00
GPT-5.5 Pro openai/gpt-5.5-pro OpenAI Multimodal CloudflareOpenRouterOrcaRouterRequestyVercel 1.1M $30.00
GPT-5.5 Pro (batch) openai/gpt-5.5-pro:batch OpenAI Multimodal CloudflareOpenRouter 1.1M $15.00
GPT-5.5 (batch) openai/gpt-5.5:batch OpenAI Multimodal CloudflareOpenRouter 1.1M $2.50
gpt-5.5:flex openai/gpt-5.5:flex OpenAI Multimodal Requesty 1.1M $2.50
gpt-5.5@eastus2 openai/gpt-5.5@eastus2 OpenAI Multimodal Requesty 1.1M $5.00
gpt-5.5@germanywestcentral openai/gpt-5.5@germanywestcentral OpenAI Multimodal Requesty 1.1M $5.00

Showing the top 50 of 1,040. Search the full catalog to go further.

How this is measured. Ranked on the largest context window any tracked gateway publishes for the model — gateways sometimes differ on the same model, and the per-model page shows each one. Models whose gateways publish no context window are excluded rather than sorted as zero.