$ diff gpt-6-1-sol inkling
GPT-6.1 Sol vs Inkling
Values come from GPT-6.1 Sol and Inkling, 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
- context
- 1M
- weights
- open
- $/M in
- —
- $/M out
- —
What actually differs
- Context window
- GPT-6.1 Sol takes 1.1M against 1M — modestly more room in a single request.
- Weights
- Inkling publishes weights (Apache 2.0 (open-weight)); 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 76 days after Inkling (2026-09-29 vs 2026-07-15).
Full spec
| Attribute | GPT-6.1 Sol | Inkling |
|---|---|---|
| Developer | OpenAI | Thinking Machines |
| Released | 2026-09-29 | 2026-07-15 |
| Context window | 1.05M tokens | 1M |
| Pricing | $2/M input · $10/M output · cached input $0.10/M | not recorded |
| License | proprietary (API-only; no weight release) | Apache 2.0 (open-weight) |
| Availability | OpenAI API; Codex; ChatGPT Work — surfaces named in reporting, not enumerated by a first-party page | Hugging Face (BF16 and NVFP4), Tinker (fine-tuning), SGLang, vLLM, llama.cpp, Unsloth |