API-only (weights pending) Apache 2.0 weights in 5 days (Nov 12, 2026) Model card checked Nov 6, 2026

Alternatives, in order of how often they win

Every model the official table pits against Inkling 2 Small, ranked by how many shared benchmarks it outscores. A model that beats it often is a genuine substitute; one that rarely does is context.

On the official evaluation table, Kimi K3 outscores Inkling 2 Small on 25 of 64 shared benchmarks, making it the closest substitute by results. Inkling 2 Small is 594B parameters with 17B active and costs $1 per million output tokens on Tinker — cheaper per token than the first-generation models, but slower per task than most competitors.

Derived from the model card's own matrix. “Beats” counts shared rows where the competitor scores higher; “trails” counts the reverse. Ties and unscored rows are excluded.
Model Tier Beats Trails Tinker price Comparison
Kimi K3 open, large 25 39 — Compare
Gemini 3.8 Flash closed 23 30 — Compare
DeepSeek-V4.1-Flash-1017 open, small 21 27 — Compare
Claude Haiku 5.5 closed 21 27 — Compare
GLM 5.3 open, large 19 35 — Compare
MiMo V2.6 Pro open, large 12 30 — Compare
GLM-5.3-Flash open, small 11 44 — Compare
Muse Spark Open open, large 8 43 — Compare
MiMo V2.6 Flash open, small 6 28 — Compare
Mistral Large 4 open, large 6 39 — Compare
GPT-6 Luna closed 6 41 — Compare
MiniMax-M3.1-Flash open, small 4 36 — Compare

How to choose

Raw benchmark count is a blunt instrument. What usually decides it is constraint order: licence first, then context, then price, then score. Inkling 2 Small is the right choice if you need a mid-sized multimodal model, can work within 64K or 256K context, and value fine-tunability — Thinking Machines designed it to adapt quickly to narrow data.

It is the wrong choice if you need the highest possible score, the lowest latency, or audio. Several open-weights models score higher on software engineering, and closed frontier models lead on nearly everything. The model's honest pitch is capability per dollar with a strong vision encoder, not a leaderboard win.

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