$ diff gpt-6-1-sol longcat-2-0

GPT-6.1 Sol vs LongCat-2.0

Values come from GPT-6.1 Sol and LongCat-2.0, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.

OpenAIGPT-6.1 Sol

context: 1.1M
weights: closed
$/M in: $2
$/M out: $10

MeituanLongCat-2.0

context: 1M
weights: open
$/M in: $0.3
$/M out: $1.2

What actually differs

Context window: GPT-6.1 Sol takes 1.1M against 1M — modestly more room in a single request.
Input price: LongCat-2.0 at $0.3/M against $2/M — 6.7× cheaper to feed. Standard rates: one of these labs also quotes a lower cached-input tier, which applies only when a prefix is reused — see the full spec below.
Output price: LongCat-2.0 at $1.2/M against $10/M — 8.3× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
Weights: LongCat-2.0 publishes weights (MIT (commercially permissive)); GPT-6.1 Sol is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
Recency: GPT-6.1 Sol shipped 91 days after LongCat-2.0 (2026-09-29 vs 2026-06-30).

Full spec

Attribute	GPT-6.1 Sol	LongCat-2.0
Developer	OpenAI	Meituan
Released	2026-09-29	2026-06-30
Context window	1.05M tokens	1 million tokens (LongCat Sparse Attention / LSA)
Pricing	$2/M input · $10/M output · cached input $0.10/M	$0.30/M input · $1.20/M output ($0.006/M cached input) — OpenRouter catalogue, read 2026-07-28. Open weights, so this is hosted-inference pricing rather than a licence fee.
License	proprietary (API-only; no weight release)	MIT (commercially permissive)
Availability	OpenAI API; Codex; ChatGPT Work — surfaces named in reporting, not enumerated by a first-party page	Open-sourced 2026-06-30; previously served on OpenRouter under the codename "Owl Alpha"

How these pages are produced

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