Ling-2.6-1T
Released Apr 24, 2026 · knowledge cutoff unpublished
- Status
- Superseded
- Location
- China
- Modality
- Text
- Context window
- 262K
- Max output
- 33K
- Speed
- —
- Price ($/MTok in / out)
- $0.30 / $2.50
- Cost per task
- —
- Open weights
- Yes
Benchmarks4 of 8 reported
GPQA Diamond
SWE-bench Verified
AIME (latest)
Humanity's Last Exam
MMLU-Pro
Terminal-Bench 2.1
LMArena Elo
ARC-AGI-2
Strengths & weaknesses
Strengths
- Skips multi-step chain-of-thought in favor of a "fast thinking" mode, giving high-quality answers at roughly a quarter the token cost of comparable reasoning models
- Hybrid MLA/linear-attention architecture keeps latency and VRAM use down at the full 256K context length
- Open weights under a permissive licence, with drop-in compatibility for existing agent scaffolds (Claude Code, OpenCode, and others)
Weaknesses
- A non-reasoning model by design — not built for deep multi-step reasoning tasks, where its Ring-2.6 thinking sibling is the intended tool instead
- Humanity's Last Exam score is low relative to its coding and agentic numbers, consistent with a model tuned for execution over broad expert knowledge
- Too new for independent coverage on LMArena or Artificial Analysis' full benchmark suite at launch
Ant Group's Bailing team announced Ling-2.6-1T on 2026-04-24 (weights open-sourced 2026-04-30 on Hugging Face/ModelScope); Maia's supplied link (ling-1t.ai/ling-2-6-1t) is not an official Ant Group/InclusionAI domain and was not used as a source. GPQA Diamond, HLE and AIME26 figures are third-party aggregator reports (aiflashreport.com, howaiworks.ai), not confirmed on an official Ant Group table or on Artificial Analysis directly — treat as secondary-sourced. Pricing is Artificial Analysis' median across API providers ($0.30/$2.50 per MTok); OpenRouter separately lists a lower $0.075/$0.625 rate, which may be promotional. Context window is 262,144 tokens via the public API; some coverage cites a 1M-token native/trained context. Total/active parameters are reported as roughly 1.03T/63B (MoE).
For developers
API model strings
Not researched
Licence
MIT License · Permissive · commercial use permitted
Retirement
No retirement announced
Lineage
No recorded predecessor