$ diff kimi-k3-1-pro gpt-6-1-sol
Kimi K3.1 Pro vs GPT-6.1 Sol
Values come from Kimi K3.1 Pro and GPT-6.1 Sol, 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.
Moonshot AIKimi K3.1 Pro
- context
- 1.0M
- weights
- —
- $/M in
- $2
- $/M out
- $10
- context
- 1.1M
- weights
- closed
- $/M in
- $2
- $/M out
- $10
What actually differs
- Context window
- GPT-6.1 Sol takes 1.1M against 1.0M — modestly more room in a single request.
- Recency
- Kimi K3.1 Pro shipped 24 days after GPT-6.1 Sol (2026-10-23 vs 2026-09-29).
Full spec
| Attribute | Kimi K3.1 Pro | GPT-6.1 Sol |
|---|---|---|
| Developer | Moonshot AI | OpenAI |
| Released | 2026-10-23 | 2026-09-29 |
| Context window | 1,048,576 tokens ([source](../../sources/blogs/moonshot-2026-10-24-k3-pricing.md)) | 1.05M tokens |
| Pricing | $2.00/MTok input · $10.00/MTok output · $0.20/MTok cached input; cache writes $2.00/MTok (5m), $4.00/MTok (1h); excludes taxes ([source](../../sources/blogs/moonshot-2026-10-24-k3-pricing.md)) | $2/M input · $10/M output · cached input $0.10/M |
| License | not recorded | proprietary (API-only; no weight release) |
| Availability | Kimi.ai, mobile apps, Kimi Work, Kimi Code, Kimi API; enterprise access off by default at launch ([source](../../sources/blogs/moonshot-2026-10-23-kimi-k3-1-pro.md)) | OpenAI API; Codex; ChatGPT Work — surfaces named in reporting, not enumerated by a first-party page |