AI Model Catalog: 5 Models Compared — Pricing, Context & Benchmarks

OpenAI: GPT-6 Astra T

Reasoning Tools JSON 61.0

GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.

openai/gpt-6-astra 2026-09-04 1.05M context $10/M input $50/M output

18 providers

OpenAI: GPT-5.6 Sol T

Reasoning Tools JSON 58.9

Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows

openai/gpt-5.6-sol 2026-07-09 1.05M context $4/M input $20/M output

36 providers

OpenAI: GPT-5.6 Terra T

Reasoning Tools JSON 55.0

Balanced GPT-5.6 model for capable, cost-efficient everyday work

openai/gpt-5.6-terra 2026-07-09 1.05M context $2/M input $12/M output

35 providers

xAI: Grok 4.3 T

Reasoning Tools JSON 53.0

xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk

xai/grok-4.3 2026-04-17 1M context $1.25/M input $2.5/M output

28 providers

OpenAI: GPT-5.6 Luna T

Reasoning Tools JSON 51.2

Cost-efficient GPT-5.6 model for fast, high-volume workloads

openai/gpt-5.6-luna 2026-07-09 1.05M context $0.2/M input $1.2/M output

36 providers

Filterable model directory
Model	Creator	Score	Inputs	Context	Input	Output	Released
GPT-6 Astraopenai/gpt-6-astra	OpenAI	61.0	T	1.05M	$10	$50	2026-09-04
GPT-5.6 Solopenai/gpt-5.6-sol	OpenAI	58.9	T	1.05M	$4	$20	2026-07-09
GPT-5.6 Terraopenai/gpt-5.6-terra	OpenAI	55.0	T	1.05M	$2	$12	2026-07-09
Grok 4.3xai/grok-4.3	xAI	53.0	T	1M	$1.25	$2.5	2026-04-17
GPT-5.6 Lunaopenai/gpt-5.6-luna	OpenAI	51.2	T	1.05M	$0.2	$1.2	2026-07-09