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Model sheet

flint-40b

Architecture mixture of experts49 LayersLicense apache-2.0Maximum context 256kVocabulary 150,144

Watch the video

At Q4_K_M it is a 23.61 GiB file, and it fits on 10 of the 18 machines we measure (those with the least memory: Mini-PC with an NPU and 32 GB LPDDR5X · Mac mini with M6 and 32 GB). Here the file is what fills the memory: even at its maximum context of 256k tokens, the context adds 7.03 GiB — and the same content in German takes ×1.55 the tokens of English.

At a glance
Size at Q4_K_M23.61 GiB
Context memory at 8k0.25 GiB
Fits on10 / 18
German cost×1.55
Smallest machine that takes itMini-PC with an NPU and 32 GB LPDDR5X
23.61 GiB

Model size at Q4_K_M

Measured by Local AI Scope

0.25 GiB

Context memory at 8k tokens

Measured by Local AI Scope

×1.55

What German costs versus English

Measured by Local AI Scope

Videos

Videos: flint-40b 1

The best walk-throughs we found. Press play and it opens right here.

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Sizes

Sizes of the real published files

These are the sizes of the files actually published by the author, added up when the model ships split into parts. Not an estimate from the parameter count.

Size of the published file for each compression
Compression Model size
Q8_0 39.44 GiB
Q6_K 32.78 GiB
Q5_K_M 28.69 GiB
Q5_K_S 26.63 GiB
Q4_K_M 23.61 GiB
Q4_K_S 22.19 GiB
IQ4_XS 20.91 GiB
Q3_K_M 18.19 GiB
Context

Context memory

Computed from the attention pattern this model declares layer by layer, not from the generic formula. That is why the figure is often far smaller than other calculators tell you.

  • 8k tokens → 0.25 GiB
  • 32k tokens → 0.91 GiB
  • 128k tokens → 3.53 GiB
Languages

What it costs in each language

Measured by running this model’s own tokenizer over the same content in four languages. Tokens are what you pay for in context, in memory and in your cloud bill.

Token cost per kind of text and language, with English as the baseline
Kind of text EN ES FR DE
Code — ×1.27 ×1.40 ×1.59
Contracts — ×1.33 ×1.40 ×1.67
Business email — ×1.23 ×1.32 ×1.38
Support tickets — ×1.39 ×1.49 ×1.52

English is the baseline: every figure is how many times more tokens the same content costs in that language. Average across the whole corpus: DE ×1.55.

Machines

Where it fits

Fits means the model, its context memory and the working headroom all fit at the stated context, leaving the system its share. 10 of the 18 machine profiles tested (Q4_K_M, 8k tokens).

The 18 machine profiles, with the memory each one leaves and the largest context this model holds on it
Machine Fits Memory left Largest context that fits
PC with an RTX 4060 8 GB no 7.20 GiB —
PC with an RTX 3060 12 GB no 11.20 GiB —
PC with an RTX 4070 12 GB no 11.20 GiB —
Mac with M4 and 16 GB unified memory no 13.00 GiB —
Office laptop, CPU only, 16 GB no 13.00 GiB —
Mac mini with M6 and 16 GB no 13.00 GiB —
Mac with M4 Pro and 24 GB no 21.00 GiB —
Workstation with an RTX 4090 24 GB no 23.20 GiB —
Mini-PC with an NPU and 32 GB LPDDR5X yes 29.00 GiB 64k
Mac mini with M6 and 32 GB yes 29.00 GiB 64k
Server with 2× RTX 3090 (48 GB) yes 47.20 GiB 256k
Mac with M4 Max and 64 GB yes 61.00 GiB 256k
Mac mini with M5 Pro and 64 GB yes 61.00 GiB 256k
Xiaomi AI Cube, 80 GB — engineering prototype yes 77.00 GiB 256k
PC with Ryzen AI Max+ 395 and 128 GB unified yes 96.00 GiB 256k
Mac Studio with M5 Max and 128 GB yes 125.00 GiB 256k
PC with Ryzen AI Max+ PRO 495 and 192 GB unified yes 160.00 GiB 256k
Mac Studio with M5 Ultra and 512 GB yes 509.00 GiB 256k

If you are willing to compress it more, it does run where the table says no: at Q4_K_S (22.19 GiB), up to 8k tokens of context, on Workstation with an RTX 4090 24 GB; at Q3_K_M (18.19 GiB), up to 32k tokens of context, on Mac with M4 Pro and 24 GB. Below Q4_K_M the model loses a little quality, and at Q3_K_M you can tell; that is why the table above sticks to Q4_K_M.

Before you hit download: as of 23 October 2026, Recursive Flint is brand new and the programs that run it are still catching up, so check your version first. llama.cpp opens it from daily build b11803 (from 21 October 2026) onwards; its latest stable release, v0.7.0 (from 15 October 2026), does not. Ollama has run it on Linux and Windows as well as macOS since 0.40.9 (from 23 October 2026), the release that brought the llama.cpp built into Ollama up to build b11803. Heads-up: ollama run flint does not download the table’s Q4_K_M (23.61 GiB). On a Mac with Apple Silicon it fetches an MLX version; on Linux, Windows and Intel Macs, Recursive’s own NVFP4 file (21.29 GiB, meant mainly for NVIDIA cards). By our count the NVFP4 file fits a 24 GB graphics card up to 16k, but Recursive lists it as tested on four NVIDIA systems (B300, RTX PRO 6000 Blackwell, RTX Spark and DGX Spark) and recommends at least 48 GB of GPU memory; we have not checked whether it runs on an RTX 4090. Ollama also offers Recursive’s Q4_1 (flint:40b-a2b-q4_1, 24.21 GiB), meant mainly for Macs (Recursive asks for at least 48 GB of unified memory), and an MLX version (flint:40b-a2b-qat-int4, 21.03 GiB) that already ran on 0.40.8, only on macOS. LM Studio’s team has published a GGUF in its community program (lmstudio-community), whose Q4_K_M weighs 22.51 GiB; we have not checked which version of LM Studio’s engine you need, so update it before you try. mlx-lm does not open it in its latest version, 0.32.2. vLLM added it to its development branch on 22 October 2026, after its latest stable release, 0.32.0, which therefore does not open it yet. And the context: the table stops at 256k, which is what its config.json declares; Recursive says it supports up to 512k and recommends staying within 256k.