AI Model Catalog: 3 Models Compared — Pricing, Context & Benchmarks

Moonshot AI: Kimi K3 T

Reasoning Tools JSON Open weights 91.2

Multimodal Kimi model with 1M context and toggleable max-effort thinking for long-horizon agent work

moonshotai/kimi-k3 2026-07-16 1.04858M context $3/M input $15/M output

62 providers

StepFun: Step 3.7 Flash T

Reasoning Tools JSON Open weights 75.8

Newer StepFun flash model for faster agents, coding, and multimodal prompts

stepfun/step-3.7-flash 2026-05-29 256K context $0.185/M input $1.11/M output

17 providers

NVIDIA: Nemotron 3 Ultra 550B A55B T

Reasoning Tools Open weights 44.4

Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy

nvidia/nemotron-3-ultra-550b-a55b 2026-06-04 1M context $0.5/M input $2.5/M output

15 providers

Filterable model directory
Model	Creator	Score	Inputs	Context	Input	Output	Released
Kimi K3moonshotai/kimi-k3	Moonshot AI	91.2	T	1.04858M	$3	$15	2026-07-16
Step 3.7 Flashstepfun/step-3.7-flash	StepFun	75.8	T	256K	$0.185	$1.11	2026-05-29
Nemotron 3 Ultra 550B A55Bnvidia/nemotron-3-ultra-550b-a55b	NVIDIA	44.4	T	1M	$0.5	$2.5	2026-06-04