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Devstral 2 vs Grok 4.3

Side-by-side API economics and benchmarks. Per-1M input and output rates, context window, and verified metrics.

Tale of the tape

Head-to-head specs pulled from each model profile.

Metric Devstral 2 Grok 4.3
Input cost / 1M $0.40 $1.25
Output cost / 1M $2.00 $2.50
Context window 256,000 tokens 1,000,000 tokens
MMLU score

Cost verdict

Enter monthly input and output volumes to see total cost savings.

Devstral 2

Input: 1M × $0.40 = $0.40
Output: 1M × $2.00 = $2.00
Total
$2.40

Grok 4.3

Input: 1M × $1.25 = $1.25
Output: 1M × $2.50 = $2.50
Total
$3.75

Total cost savings

$1.35

Devstral 2 saves $1.35 per month vs the other model at this volume.

Model routing savings

Uses this page's verified rates. Grok 4.3 is the premium route (higher combined per-1M cost); Devstral 2 handles routine traffic.

Premium model

Grok 4.3

$1.25 in · $2.50 out / 1M

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Economical model

Devstral 2

$0.40 in · $2.00 out / 1M

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All premium

Grok 4.3

$187.50

100% of input and output on the premium route

Routed stack

80%Devstral 2

Grok 4.3

$133.50

Routine slice
$96.00
Premium slice
$37.50

Monthly savings

$54.00

28.8% lower

Rates pulled from this page's model database entries (grok-4-3, devstral-2) — same per-1M input/output figures as Tale of the tape. Production routing needs quality gates and monitoring.

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