GPT-6 Sol
GPT-6 Sol is the cost-efficient high-end tier of OpenAI's GPT-6 family, sitting below the flagship GPT-6 Astra and above the smaller GPT-6 Luna.
input · usd / 1m tok
$2.00
output · usd / 1m tok
$10.00
context window
1.05mtokens
modalities · in → out
takes text and image in, gives text out
pricing
base api ratesusd per 1m tokens
- input
- $2.00over 272k · $4.00
- output
- $10.00over 272k · $15.00
- cache read
- $0.20over 272k · $0.40
- cache write · default ttl
- $2.50over 272k · $5.00
brackets are by input tokens per request: a request over a threshold is billed at that bracket's rates for all of its tokens. cache creation can have a separate charge.
providers
OpenAI hosts GPT-6 Sol. Impossibl routes your request intelligently and handles failover automatically when a provider is down.
- OpenAI
specifications
takes text and image in, gives text outopenai/gpt-6-sol
- creatorOpenAI
- model typeText generation
- context window1,050,000 tokens
- maximum outputnot published
- input
takes text and image in, gives text out
- outputtext
- tool callingnot verified
- releasedsep 22, 2026
- endpoint
/v1/chat/completions
unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.
try it · your prompt, this model, live
# responses API
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["IMPOSSIBL_API_KEY"],
base_url="https://api.impossibl.com/v1",
)
resp = client.responses.create(
model="openai/gpt-6-sol",
input="",
)
print(resp.output_text)
edit the prompt, then run
benchmarks
benchmark results are not available for this model yet.
compare GPT-6 Sol with other models
frontier labs and open weights, best-ranked firstusd / 1m tok · in / out
- anthropic/claude-fable-5-1$10.00 / $50.00compare →
- meta/muse-spark-1.3$1.25 / $4.25compare →
- zai/glm-5.3$1.40 / $4.40compare →
- xai/grok-4.6$2.00 / $6.00compare →
frequently asked questions
What is GPT-6 Sol?
GPT-6 Sol is the cost-efficient high-end tier of OpenAI's GPT-6 family, sitting below the flagship GPT-6 Astra and above the smaller GPT-6 Luna. It is aimed at demanding professional work — agentic coding in real repositories, computer use and long-horizon workflow automation — where Astra-class reliability is wanted without Astra's price.
How much does GPT-6 Sol cost?
GPT-6 Sol costs $2.00 per million input tokens and $10.00 per million output tokens through the Impossibl API. Cache reads cost $0.20 per million tokens; cache writes cost $2.50 per million tokens. These base rates apply through 272,000 total input tokens per request. Above 272,000 input tokens, the long-context rates in the pricing table apply to the whole request. All rates are in USD.
What is the context length of GPT-6 Sol?
GPT-6 Sol has a 1,050,000-token context window through the Impossibl API.
What inputs and outputs does GPT-6 Sol support?
GPT-6 Sol accepts text and image as input. GPT-6 Sol returns text.
How do I use GPT-6 Sol through an API?
GPT-6 Sol is available through the Impossibl API. Use openai/gpt-6-sol as the model identifier with /v1/chat/completions. The quickstart explains how to create an API key and send your first request.
When was GPT-6 Sol released?
OpenAI released GPT-6 Sol on September 22, 2026.
this page describes GPT-6 Sol as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes. model descriptions and release dates, where available, use the creator sources linked under the answers above.
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