The best long-context open LLMs (128K+ tokens)

Open LLMs with a native context window of 128K tokens or more — for long documents, big codebases, and extended chats. Ranked by context window (longest first), with the honest cost to run each. Context length is a hard catalog number; how well a model actually uses it is yours to judge.

How this is ranked: Objective: context window is a catalog fact. We rank by the number itself and add the honest caveat that a large native window doesn't guarantee good long-context recall — we report the spec, not a benchmark we didn't run.

1. Llama 4 Scout (17B-16E) — Meta, 109B · 1M ctx · $0.20/1M API · commercial OK
2. Llama 4 Maverick (17B-128E) — Meta, 402B · 1M ctx · $0.38/1M API · commercial OK
3. DeepSeek V4 Pro — deepseek-ai, 861.6B · 1M ctx · $0.66/1M API · commercial OK
4. DeepSeek V4 Flash — deepseek-ai, 158.1B · 1M ctx · $1.36/1M API est. · commercial OK
5. DeepSeek V4 Flash NVFP4 — nvidia, 166.7B · 1M ctx · $1.43/1M API est. · commercial OK
6. DeepSeek V4 Pro NVFP4 — nvidia, 910B · 1M ctx · $7.38/1M API est. · commercial OK
7. MiMo V2.5 Pro — XiaomiMiMo, 1023.2B · 1M ctx · $8.29/1M API est. · commercial OK
8. Seed OSS 36B Instruct — ByteDance-Seed, 36.2B · 524.3K ctx · $0.39/1M API est. · commercial OK
9. ReaderLM v2 — jinaai, 1.5B · 512.8K ctx · $0.11/1M API est. · non-commercial
10. North Mini Code 1.0 — CohereLabs, 30.5B · 500K ctx · $0.34/1M API est. · commercial OK
11. Qwen3 4B Instruct 2507 — Qwen, 4B · 262.1K ctx · $0.13/1M API est. · commercial OK
12. Rio 3.0 Open Mini — prefeitura-rio, 4B · 262.1K ctx · $0.13/1M API est. · commercial OK
13. Qwen3 Coder 30B A3B Instruct — Qwen, 30.5B · 262.1K ctx · $0.34/1M API est. · commercial OK
14. Qwen3 Coder Next — Qwen, 79.7B · 262.1K ctx · $0.74/1M API est. · commercial OK
15. Qwen3 30B A3B Instruct 2507 — Qwen, 30.5B · 262.1K ctx · $0.34/1M API est. · commercial OK
16. Qwen3 4B Thinking 2507 — Qwen, 4B · 262.1K ctx · $0.13/1M API est. · commercial OK
17. Step 3.5 Flash — stepfun-ai, 199.4B · 262.1K ctx · $1.70/1M API est. · commercial OK
18. Qwen3 Next 80B A3B Instruct — Qwen, 81.3B · 262.1K ctx · $0.75/1M API est. · commercial OK
19. Laguna XS.2 — poolside, 33.4B · 262.1K ctx · $0.37/1M API est. · commercial OK
20. Qwen3 30B A3B Thinking 2507 — Qwen, 30.5B · 262.1K ctx · $0.34/1M API est. · commercial OK
21. Karnak 40B v1.0 — Applied-Innovation-Center, 40.7B · 262.1K ctx · $0.43/1M API est. · commercial OK
22. Qwen3 235B A22B Instruct 2507 — Qwen, 235.1B · 262.1K ctx · $1.98/1M API est. · commercial OK
23. lynx instruct 30b — bineric, 30.5B · 262.1K ctx · $0.34/1M API est. · commercial OK
24. Qwen3.6 35B A3B DFlash — z-lab, 500M · 262.1K ctx · $0.10/1M API est. · commercial OK
25. MiMo V2 Flash — XiaomiMiMo, 309.8B · 262.1K ctx · $2.58/1M API est. · commercial OK
26. Qwen3.6 27B OBLITERATED — OBLITERATUS, 26.9B · 262.1K ctx · $0.32/1M API est. · commercial OK
27. Qwen3 Coder 480B A35B Instruct — Qwen, 480.2B · 262.1K ctx · $0.61/1M API · commercial OK
28. Nanbeige4.1 3B — Nanbeige, 3.9B · 262.1K ctx · $0.13/1M API est. · commercial OK
29. gemma 4 31B it DFlash — z-lab, 1.5B · 262.1K ctx · $0.11/1M API est. · commercial OK
30. GLM 4.7 Flash — zai-org, 31.2B · 202.8K ctx · $0.35/1M API est. · commercial OK
31. GLM 4.7 Flash — unsloth, 31.2B · 202.8K ctx · $0.35/1M API est. · commercial OK
32. GLM 4.7 Flash NVFP4 — GadflyII, 18.4B · 202.8K ctx · $0.25/1M API est. · commercial OK
33. GLM 5.1 — zai-org, 753.9B · 202.8K ctx · $2.03/1M API · commercial OK
34. GLM 5 — zai-org, 753.9B · 202.8K ctx · $6.13/1M API est. · commercial OK
35. GLM 4.7 — zai-org, 358.3B · 202.8K ctx · $1.08/1M API · commercial OK
36. GLM 4.6 — zai-org, 356.8B · 202.8K ctx · $1.09/1M API · commercial OK
37. DeepSeek-Coder-V2-Lite Instruct — DeepSeek, 15.7B · 163.8K ctx · $0.23/1M API est. · commercial OK
38. DeepSeek-R1 — DeepSeek, 671B · 163.8K ctx · $1.60/1M API · commercial OK
39. DeepSeek R1 0528 — deepseek-ai, 684.5B · 163.8K ctx · $1.33/1M API · commercial OK
40. DeepSeek V3.2 — deepseek-ai, 685.4B · 163.8K ctx · $5.58/1M API est. · commercial OK

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