Grok 3 vs Mistral Small 3.2 24B

In our testing Grok 3 is the better pick for quality-sensitive tasks — it wins 10 of 12 benchmarks, including structured output, long context, and faithfulness. Mistral Small 3.2 24B wins constrained rewriting and is dramatically cheaper, so pick it when cost at scale is the primary constraint.

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Grok 3

Overall
4.25/5Strong

Benchmark Scores

Faithfulness
5/5
Long Context
5/5
Multilingual
5/5
Tool Calling
4/5
Classification
4/5
Agentic Planning
5/5
Structured Output
5/5
Safety Calibration
2/5
Strategic Analysis
5/5
Persona Consistency
5/5
Constrained Rewriting
3/5
Creative Problem Solving
3/5

External Benchmarks

SWE-bench Verified
N/A
MATH Level 5
N/A
AIME 2025
N/A

Pricing

Input

$3.00/MTok

Output

$15.00/MTok

Context Window131K

modelpicker.net

mistral

Mistral Small 3.2 24B

Overall
3.25/5Usable

Benchmark Scores

Faithfulness
4/5
Long Context
4/5
Multilingual
4/5
Tool Calling
4/5
Classification
3/5
Agentic Planning
4/5
Structured Output
4/5
Safety Calibration
1/5
Strategic Analysis
2/5
Persona Consistency
3/5
Constrained Rewriting
4/5
Creative Problem Solving
2/5

External Benchmarks

SWE-bench Verified
N/A
MATH Level 5
N/A
AIME 2025
N/A

Pricing

Input

$0.075/MTok

Output

$0.200/MTok

Context Window128K

modelpicker.net

Benchmark Analysis

All benchmark claims below are from our testing. Summary (wins/ties): Grok 3 wins 10 tests, Mistral Small 3.2 24B wins 1, and they tie on tool calling. Detailed walk-through: - structured output: Grok 3 scores 5 vs Mistral 4 — Grok 3 tied for 1st ("tied for 1st with 24 other models out of 54 tested"), meaning better JSON/schema compliance for production integrations. - strategic analysis: Grok 3 5 vs Mistral 2 — Grok 3 ranks tied for 1st ("tied for 1st with 25 other models out of 54"), so it handles nuanced tradeoffs and numeric reasoning substantially better. - constrained rewriting: Grok 3 3 vs Mistral 4 — Mistral wins and ranks 6 of 53 ("rank 6 of 53"), making Mistral the better choice for aggressive compression/character-limit tasks. - creative problem solving: Grok 3 3 vs Mistral 2 — Grok 3 wins (rank 30 of 54), so it provides more feasible, specific creative ideas in our tests. - faithfulness: Grok 3 5 vs Mistral 4 — Grok 3 tied for 1st ("tied for 1st with 32 other models out of 55"), showing stronger source fidelity in tasks that cannot hallucinate. - classification: Grok 3 4 vs Mistral 3 — Grok 3 tied for 1st ("tied for 1st with 29 other models out of 53"), so routing and labeling are more reliable. - long context: Grok 3 5 vs Mistral 4 — Grok 3 tied for 1st ("tied for 1st with 36 other models out of 55"), meaning better retrieval/accuracy at 30K+ tokens in our tests. - safety calibration: Grok 3 2 vs Mistral 1 — Grok 3 ranks better ("rank 12 of 55 (20 models share this score)" vs Mistral "rank 32 of 55"), so Grok 3 refused more harmful prompts while permitting legitimate ones in our setup. - persona consistency: Grok 3 5 vs Mistral 3 — Grok 3 tied for 1st ("tied for 1st with 36 other models out of 53"), which matters for role-based agents and character-driven chat. - agentic planning: Grok 3 5 vs Mistral 4 — Grok 3 tied for 1st ("tied for 1st with 14 other models out of 54"), indicating stronger goal decomposition and recovery strategies. - tool calling: both score 4 and tie (both show "rank 18 of 54 (29 models share this score)"), so function selection and argument accuracy are comparable in our tests. Practical meaning: Grok 3 is clearly stronger on structured outputs, long-context tasks, classification, faithfulness, persona and planning — the kinds of tasks common in enterprise automation and analytics. Mistral’s clear win is constrained rewriting; otherwise it’s competitive on tool calling but behind on strategic and creative reasoning.

BenchmarkGrok 3Mistral Small 3.2 24B
Faithfulness5/54/5
Long Context5/54/5
Multilingual5/54/5
Tool Calling4/54/5
Classification4/53/5
Agentic Planning5/54/5
Structured Output5/54/5
Safety Calibration2/51/5
Strategic Analysis5/52/5
Persona Consistency5/53/5
Constrained Rewriting3/54/5
Creative Problem Solving3/52/5
Summary10 wins1 wins

Pricing Analysis

Costs in the payload are per mTok (per 1,000 tokens). Grok 3: input $3/mtok, output $15/mtok. Mistral Small 3.2 24B: input $0.075/mtok, output $0.20/mtok. If you budget for 1M input tokens + 1M output tokens (1M each = 1,000 mTok each): Grok 3 = $3,000 (input) + $15,000 (output) = $18,000; Mistral = $75 + $200 = $275. At 10M in+10M out: Grok 3 = $180,000 vs Mistral = $2,750. At 100M in+100M out: Grok 3 = $1,800,000 vs Mistral = $27,500. The payload also gives a price ratio of 75x. Who cares: startups, high-volume APIs, and consumer apps will almost always prefer Mistral on cost; enterprises doing mission-critical extraction, long-context analytics, or classification may accept Grok 3’s substantially higher spend for higher quality on those benchmarks.

Real-World Cost Comparison

TaskGrok 3Mistral Small 3.2 24B
iChat response$0.0081<$0.001
iBlog post$0.032<$0.001
iDocument batch$0.810$0.011
iPipeline run$8.10$0.115

Bottom Line

Choose Grok 3 if: - You need best-in-class structured output, faithfulness, long context retrieval, classification, persona consistency, or agentic planning in production. Our tests show Grok 3 wins 10 of 12 benchmarks and ranks tied for 1st in several critical categories. Choose Mistral Small 3.2 24B if: - You operate at scale and cost matters (Mistral’s input $0.075/mtok and output $0.20/mtok). It wins constrained rewriting and ties on tool calling, so it’s a strong value pick for high-volume apps, compression tasks, or cost-sensitive deployments.

How We Test

We test every model against our 12-benchmark suite covering tool calling, agentic planning, creative problem solving, safety calibration, and more. Each test is scored 1–5 by an LLM judge. Read our full methodology.

Frequently Asked Questions