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Compare / head-to-head

Grok 4 Fast ReasoningvsMistral Large 3

Grok 4 Fast Reasoning and Mistral Large 3 do not yet share a public benchmark, so quality cannot be compared apples-to-apples. Grok 4 Fast Reasoning is 2.9x cheaper per token. Grok 4 Fast Reasoning has the larger context window (2M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
0
no overlap yet
Cheaper per token
Grok 4 Fast Reasoning
2.9x cheaper, input + output
Larger context
Grok 4 Fast Reasoning
2M tokens
Provider uptime (30d)
— · 100%
xAI · Mistral AI
Grok 4 Fast Reasoning
xAI · released 2025-09-19
text
Context
2M
Max out
Input /1M
$0.2
Output /1M
$0.5
Cached /1M
$0.05
Scores
12 · 4 core
Mistral Large 3
Mistral AI · released 2025-12-02
textvision
Context
256K
Max out
Input /1M
$0.5
Output /1M
$1.5
Cached /1M
$0.05
Scores
1 · 1 core
Quality

Benchmark matrix

BenchmarkGrok 4 Fast ReasoningMistral Large 3ΔEdge
Reported by both · 0
No public benchmark is reported for both models yet.
Only Grok 4 Fast Reasoning reports · 12
GPQA Diamond85.7% not reported
AIME 202592% not reported
Humanity's Last Exam (no tools)20% not reported
BrowseComp44.9% not reported
BrowseComp (zh)51.2% not reported
HMMT 2025 (no tools)93.3% not reported
LiveCodeBench (Jan-May)80% not reported
Reka Research Eval66% not reported
Search Arena Elo1163 not reported
SimpleQA95% not reported
X Bench Deepsearch (zh)74% not reported
X Browse58% not reported
Only Mistral Large 3 reports · 1
LMArena Elonot reported1427
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Grok 4 Fast Reasoning minus Mistral Large 3 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGrok 4 Fast ReasoningMistral Large 3Edge
Context window2M tokens256K tokensGrok 4 Fast Reasoning
Max output
Input price / 1M$0.2 $0.5 Grok 4 Fast Reasoning
Output price / 1M$0.5 $1.5 Grok 4 Fast Reasoning
Cached input / 1M$0.05 $0.05 Tie
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$0.7$2Grok 4 Fast Reasoning
Modalitiestexttext · visionMistral Large 3
Released2025-09-192025-12-02
Cited benchmark scores121
Reliability

Provider status

All providers
More matchups

Grok 4 Fast Reasoning vs …

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Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Grok 4 Fast Reasoning and Mistral Large 3 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.