GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned one tier below the flagship GPT-6 Astra in the GPT-6 series. It targets agentic coding, computer use, and document-heavy professional work, pairing a 1M-token context window with 128K max output and multimodal input across text, images, and files. Reasoning is always on, with five effort levels from low through max and a default of medium, so latency and token spend can be tuned per route. It supports native tool calling, structured outputs, response_format, and seed. Sampling parameters such as temperature and top_p are not accepted. Pricing matches the Sonnet tier of the market at 2 USD per million input tokens and 10 USD per million output tokens, with a long-context tier that applies above 272K prompt tokens. On Artificial Analysis it posts an Intelligence Index of 51.8.
OpenAI-compatible — keep the SDK you already use
https://api.orcarouter.ai/v1import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.orcarouter.ai/v1",
api_key=os.environ["ORCAROUTER_API_KEY"],
)
response = client.chat.completions.create(
model="openai/gpt-6.1-sol",
messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools| Tier | Input / 1M tokens | Output / 1M tokens | Cache read / 1M | Cache write / 1M |
|---|---|---|---|---|
| ≤ 272K | $2.00 | $10.00 | $0.100 | $2.50 |
| ≤ ∞ | $4.00 | $15.00 | $0.200 | $5.00 |
| Tier selected by input token count of each request | ||||
Estimate based on list price
Tiered pricing — this estimate uses base-tier rates.
Estimate only — actual token counts depend on the provider's tokenizer.
What developers are saying this week
GET /api/public/models/openai/gpt-6.1-solOpen @misc{orcarouter_gpt_6_1_sol,
title = {GPT-6.1 Sol API},
author = {OpenAI},
year = {2026},
howpublished = {OrcaRouter},
url = {https://www.orcarouter.ai/models/openai/gpt-6.1-sol}
}OpenAI. (2026). GPT-6.1 Sol API. OrcaRouter. https://www.orcarouter.ai/models/openai/gpt-6.1-sol