Capability matrix

GPT 5.6-Sol vs Kimi K3: which ecosystem fits

GPT 5.6-Sol
Kimi K3
Context window
1,050K
—
Open weights
—
✓
Benchmarks covered
16
16
Blended /1M
$12.00
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Raw benchmark parity rarely decides the pick — tooling, open weights, and provider reliability usually do.

GPT 5.6-Sol leads on 11 of 14 shared benchmarks.

DimensionGPT 5.6-SolKimi K3
GPQA Diamond94.1%92.9%
HLE44.5%43.5%
MathArena Apex—65.6%
Terminal-Bench 2.188.8%88.3%
Terminal-Bench 3.034.4%17.7%
Terminal-Bench 4.039.9%12.6%
DeepSWE v1.173%67.5%
ProgramBench23%17.5%
NL2Repo-Bench56.8%58%
CyberGym84.5%80%
SEC-Bench Pro74.3%—
ExploitGym33.7%—
HLE (w/tools)—59.8%
Automation-Bench45.8%46.7%
Agents' Last Exam26.7%27.6%
Chartography (w/tools)79.9%68.1%
BabyVision (w/tools)88.9%85.7%
ZeroBench-main (w/tools)53%41%
Blended price$12.00 /1M—
Full priceInput · Output · Cached input$4.00 · $20.00 · $0.400—
Context window1,050K—

What your usage would cost

Adjust the monthly volume — every model recomputes instantly.

GPT 5.6-Sol
$360/mo
Kimi K3
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Estimates use list prices and ignore cached input, batch discounts, and off-peak rates.

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