modelrigs

DeepSeek-V4.1 Flash on Mac Studio M2 Max 96 GB

763.205B (16B active) on 96 GB at 400 GB/s. Hardware details · Model details

No calculated fit. DeepSeek-V4.1 Flash does not fit under standard overhead assumptions at DS4 V4.1 Q2 (SSD): the model calculates 93.2 GB required against 81.6 GB usable.
CompatibilityDoes not fit
Calculated fit
No
Calculated Requires more than 97% of usable memory. Needs a smaller quantization or more memory.
Smallest catalogued quantization
DS4 V4.1 Q2 (SSD)
Calculated gguf
Memory required
93.2 GB
Calculated of 81.6 GB usable — 114%
Max practical context
0
Calculated model supports 1M

Memory budget at 8K context

Resident model data ⓘ
89.5 GB Measured
KV cache ⓘ
0.0 GB Calculated
Runtime overhead ⓘ
3.7 GB Estimated
Total required
93.2 GB Calculated
Headroom ⓘ
-11.6 GB Calculated
No quantization in our catalogue fits this machine.
Unified memory: weights, KV cache and the OS share the same 96 GB pool. We assume 85% is addressable by the GPU, which matches a headless machine with the wired-memory limit raised.
Mixture of experts: all 763.205B parameters must be resident in memory even though only ~16B are active per token. Memory follows total parameters; speed follows active parameters.
Performance

Estimated performance · recommended DS4 V4.1 Q2 (SSD)

Decode, prefill and TTFT below are estimates for DS4 V4.1 Q2 (SSD). We do not have a comparable DS4 V4.1 Q2 (SSD) measurement on this machine.

Estimated decode
—
Estimated DS4 V4.1 Q2 (SSD); calculated range
Estimated prefill
—
Estimated DS4 V4.1 Q2 (SSD); calculated range
Estimated TTFT at 8K
—
Estimated DS4 V4.1 Q2 (SSD); calculated range
Hardware load reference
—
Official spec hardware TDP; not this model run
No throughput figures for this configuration. We do not estimate performance for a model that cannot load.
How the estimate is calculated
  1. Decode: reading 16.0B active parameters at 3.84 bits/weight takes 27.43 ms at 400 GB/s x 70% achieved efficiency.
  2. MoE routing penalty of 15% applied: expert gathers are less bandwidth-efficient than a dense sweep.
  • MoE decode depends on how well the engine batches expert gathers; real results vary more than for dense models.
  • No FP16 compute figure for this hardware, so prefill cannot be estimated.
  • This is a calculated estimate, not a measurement. It assumes a single request, a short prompt, no speculative decoding and a warm model already resident in memory.

Estimator version estimator_v1. Stored with every estimated row so old estimates can be regenerated when the model improves.

Submit a benchmarkSubmissions stay pending until reviewed.
This model at other quantizations on this machine
QuantizationResidentDiskTotal neededUtilisationFitMax context
DS4 V4.1 Q2 (SSD)smallest listed89.5 GB340.6 GB93.2 GB114%Does not fit0
MLX 4-bit415.8 GB415.8 GB429.3 GB526%Does not fit0
Q4_K_M443.8 GB443.8 GB458.2 GB561%Does not fit0
Q5_K_M520.7 GB520.7 GB537.3 GB659%Does not fit0
Q8_0770.3 GB770.3 GB794.4 GB974%Does not fit0
Cost of running DeepSeek-V4.1 Flash on this machineUnited States (federal) · C corporation · 8h/day
Monthly economic cost
$0
Calculated after tax
Codex/Claude Code
$100/mo
≈ $100/mo · local is $100 less
Net cash at purchase
$0
Calculated VAT not reclaimable
Total over 5 years
$0
Calculated after tax, after resale
Cost per USD/1M tokens
—
Calculated

The $100 comparison uses the Codex Pro 5x / Claude Max 5x plans. A fixed planning conversion is used for USD. This compares monthly spend only: subscriptions have usage limits, local hardware has different capabilities and constraints, and taxes or regional pricing may change the charged amount. Prices checked 7 September 2026.

Monthly breakdown

Depreciation
0 over 5 years, straight-line to a 0 residual
$0.00
Electricity
0.0 kWh/month at 0.140/kWh
$0.00
Monthly cost before tax$0.00
Electricity tax shield
Running costs are deductible business expenses
-$0.00
Monthly economic cost after tax$0.00

Three different numbers, deliberately

Cash cost
$0
Money that leaves the bank account on day one, net of reclaimable VAT.
Accounting depreciation
$0.00/month
$0 written down over 5 years to a $0 residual.
After-tax economic cost
$0.00/month
Depreciation plus running costs plus cost of capital, less the tax those deductions save. This is the figure to compare between machines.
Assumptions and sources (verified 2026-09-07)
VAT rate
0% Official spec
VAT recoverable
0% Official spec
Federal C-corporation estimate at the flat 21% rate. Pass-through entities should use the sole-proprietor estimate as a rougher proxy.
Effective deduction rate
21.00% Calculated
Headline marginal rate 21.00%.
Depreciation
5 years, straight-line Assumption
Residual value
$0 (30%) Assumption
Extrapolated from the three-year curve.
Electricity
$0.000/kWh Assumption
Average power draw
0 W Calculated
Load — for 20% of powered hours, idle 0 W for the rest — a machine that is on is not generating tokens the whole time.
Investment allowances
§179 100.0% Official spec
Worth $0 in total — first-year expensing that replaces later tax depreciation.
Cost of capital
not applied Assumption
Federal planning estimate only, not tax advice. State and local income tax, sales/use tax and incentives are excluded. It assumes 100% business use, a Section 179 election, enough business income to use it, and that the full annual limit remains available.
DeepSeek-V4.1 Flash on other hardware
HardwareDecodePriceFit
NVIDIA DGX H200 (8x H200, 1,128 GB)~434–624 t/s$359,430 *Comfortable
NVIDIA DGX Station GB300 (748 GB)~70–101 t/s$90,082 *Comfortable
NVIDIA DGX Spark 128 GB9.4 t/s$3,873 *Fits
Nearest alternatives to the Mac Studio M2 Max 96 GB
DeepSeek-V4.1 Flash on Mac Studio M3 Ultra 96 GB96 GBDeepSeek-V4.1 Flash on Mac Studio M5 Ultra 96 GB96 GBDeepSeek-V4.1 Flash on Mac Studio M1 Ultra 128 GB128 GBDeepSeek-V4.1 Flash on Mac Studio M5 Max 128 GB128 GBDeepSeek-V4.1 Flash on MacBook Pro M3 Max 128 GB128 GB
Compare Mac Studio M2 Max 96 GB against Mac Studio M3 Ultra 96 GB →