GPT-6.1 Sol
Mid-tier GPT-6 model with excellent cost per task for agentic coding.
GPT-6.1 Sol is an upgrade to GPT-6 Sol, positioned below the flagship GPT-6 Astra. It is suited for agentic coding, computer use and document-heavy professional work — and is notably token-efficient.
- Provider
- OpenAI
- Type
- Language model
- Released
- Sep 29, 2026
- Context window
- 1.1M tokens
- Max output
- 128K tokens
- Price
- $2.00 input / $10.00 output per 1M tokens
- Input
- text, image, file
- Output
- text
- Open weights
- No
- Knowledge cutoff
- Apr 30, 2026
Best for
- Coding
- Agents
- Reasoning
- Extraction & classification
- Enterprise
Strengths
- Very low cost per task for its intelligence
- Computer use
- Token efficiency
More from OpenAI
- GPT-6 Astra — OpenAI. OpenAI’s flagship for deep research, science and end-to-end engineering.
- GPT-6 Luna — OpenAI. Fast, cost-efficient GPT-6 tier for chat, classification and light agents.
- GPT-5.6 Terra — OpenAI. Balanced GPT-5.6 model for everyday coding and reasoning.
- gpt-oss-120b — OpenAI. OpenAI’s Apache-2.0 open-weight reasoning model; runs on a single 80GB GPU.
- gpt-oss-20b — OpenAI. Compact open-weight reasoning model that runs on consumer hardware.
- GPT-5.4 Image 2 — OpenAI. OpenAI’s native image generation and editing model.
- text-embedding-3-large — OpenAI. OpenAI’s most capable embedding; the default in countless RAG stacks.
- text-embedding-3-small — OpenAI. Cheap, fast OpenAI embedding for high-volume indexing.
Tools that use it
- GitHub Copilot — GitHub (Microsoft). The most widely deployed AI pair programmer.
- Cursor — Anysphere. The AI-native code editor.
- Codex — OpenAI. OpenAI’s cloud and CLI coding agent.
- OpenAI Agents SDK — OpenAI. Lightweight multi-agent workflows with handoffs.
- Azure AI Foundry — Microsoft. Build and run AI apps on Azure.
- ChatGPT — OpenAI. The most widely used AI assistant.