Now on VeniceLLMReasoningAnonymous

GPT-6.1 Sol

OpenAI's mid-tier GPT-6 family workhorse — 1,050K-token context, vision, reasoning, tool use and web search, built for complex coding and agentic workflows.

For agents
curl https://api.venice.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-gpt-61-sol",
    "messages": [{ "role": "user", "content": "Explain quantum tunneling simply." }]
  }'
Model IDopenai-gpt-61-sol
Maker
OpenAI
Context
1,050K tokens
Reasoning
Supported
Privacy
Anonymous

Overview

What is GPT-6.1 Sol

GPT-6.1 Sol is OpenAI's mid-tier frontier language model from the GPT-6 family, positioned for complex coding and agentic workflows. It combines a 1,050K-token context window with vision, reasoning, function calling, and web search, and on Venice it runs under an anonymized privacy tier that stores no prompts.

Using it anonymously on Venice

On Venice, GPT-6.1 Sol runs under the anonymized privacy tier: your prompts are not stored, profiled, or fed into a training pipeline — a deliberate contrast to the account-tied history Big-Tech assistants build around you. You get the same frontier model with vision, reasoning, tool use, and web search, billed per token with no subscription, and no personal data trail attached to your work.

AnonymousNo prompt trainingTEE · hardware enclaveEnd-to-end encrypted

Agent quickstart

Three calls, copied straight out

The API is OpenAI-compatible: change the base URL and the model id and existing client code works unchanged.

Streaming chat

curl https://api.venice.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-gpt-61-sol",
    "stream": true,
    "messages": [{ "role": "user", "content": "Draft the release note." }]
  }'

Tool calling

curl https://api.venice.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-gpt-61-sol",
    "messages": [{ "role": "user", "content": "Find the rate limits." }],
    "tools": [{
      "type": "function",
      "function": {
        "name": "search_docs",
        "description": "Search the API documentation.",
        "parameters": {
          "type": "object",
          "properties": { "query": { "type": "string" } },
          "required": ["query"]
        }
      }
    }],
    "tool_choice": "auto"
  }'

Python SDK

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["VENICE_API_KEY"],
    base_url="https://api.venice.ai/api/v1",
)

resp = client.chat.completions.create(
    model="openai-gpt-61-sol",
    messages=[{"role": "user", "content": "Build without permission."}],
)
print(resp.choices[0].message.content)

Specifications

Datasheet

Maker
OpenAI
Modality
Text input and output; image input only (no audio, no video)
Open weights
No — proprietary
License
Proprietary
Modes
Adjustable reasoning effort (none / low / medium / high and above, per GPT-6 family docs); web search and function calling via API tools
Context window
1,050K tokens
Input images
Supported — multiple images accepted per request; formats and size limits per OpenAI's API docs
Released
September 2026 (GPT-6 Sol family announced September 22, 2026; live on Venice since September 2026)
Knowledge cutoff
April 2026
Max output
128K tokens
Capabilities
Vision, Function calling, Reasoning, Web search
Privacy on Venice
Anonymized — prompts not stored
Available on Venice since
Sep 2026

Assessment

Strengths and limitations

Strengths
  • Frontier-tier reasoning and coding at a mid-tier price: $2.50 per 1M input and $12.50 per 1M output tokens on Venice, with cached input at just $0.13.
  • Massive 1,050K-token context window with a 128K-token output ceiling — enough for whole codebases, long contracts, or multi-document analysis in one request.
  • Genuine agent support: function calling, structured JSON-schema output, and built-in web search let it act, not just answer.
  • Vision with multiple image inputs per request: screenshots, diagrams, and documents can be reasoned over together.
  • OpenAI reports the GPT-6 family leads the cost–intelligence curve, with improved factuality over the previous generation.
Limitations
  • Closed and proprietary: no open weights, so no self-hosting, no local deployment, and no fine-tuning of the base model.
  • Not uncensored: it ships with OpenAI's content policies, so Venice's uncensored open-source models remain the pick for unrestricted output.
  • Output tokens are the expensive side ($12.50/1M): long reasoning chains in agent loops can add up versus flash-tier rivals like Gemini 3.8 Flash or DeepSeek V4.1 Flash.
  • Third-party reviewers note a tendency to abstain or hedge rather than answer, which trades hallucination rate for completeness.
  • Knowledge cutoff of April 2026 means recent events require the web-search tool rather than parametric memory.

Use cases

What it is good for

  1. 01Agentic coding: multi-file refactors, code review, and tool-driven development loops inside a 1M-token window.
  2. 02Long-document intelligence — contracts, filings, or research corpora analyzed in a single pass with cited web search for recent facts.
  3. 03Screenshot and UI analysis: feed multiple product images and get structured JSON findings back.
  4. 04Automation pipelines that need reliable function calling and schema-validated output.
  5. 05Private research on Venice where prompts stay anonymized and unstored.

Prompting

Getting better results

Lower the reasoning effort for simple queries — reasoning tokens are billed as output at $12.50/1M, so easy tasks don't need deep thinking.

Keep your system prompt and few-shot examples stable and up front: cached input on Venice is $0.13/1M, roughly 95% cheaper than uncached.

Attach multiple screenshots in a single request instead of one per turn — multi-image input is supported and keeps context coherent.

For anything after April 2026, explicitly ask it to search the web rather than trusting parametric memory.

When building pipelines, request a JSON schema in the prompt and validate the response — structured output is a first-class capability.

Dump the whole repo or document set into one prompt instead of chunking — at 1,050K tokens, chunking is usually wasted effort.

Alternatives

How it compares

ModelBest forContextOpen weightsPrice (Venice)
GPT-6.1 SolCoding & agentic workflows1M tokensNo$2.50 in · $12.50 out / 1M
Claude Sonnet 4.6Everyday knowledge work1M tokensNo$3.60 in · $18 out / 1M
Gemini 3.8 FlashSpeed & high-volume tasks1M tokensNo$0.94 in · $4.69 out / 1M
DeepSeek V4.1 FlashBudget & self-hosting1M tokensYes$0.38 in · $1.50 out / 1M
Kimi K3Open-weight flagship1M tokensYes$3.75 in · $18.75 out / 1M

GPT-6.1 Sol is the right pick for coding, long-document analysis, and agent loops that need frontier reasoning, vision, and tool use inside a 1M-token window — without flagship pricing. If open weights or the lowest bill matter more than the ceiling, DeepSeek V4.1 Flash is the alternative.

Pricing

What it costs on Venice

Billed per token on Venice: $2.50 per 1M input tokens and $12.50 per 1M output tokens.

Input / 1M tokens
$2.50
Per 1M tokens
Output / 1M tokens
$12.50
Per 1M tokens
Cached input / 1M
$0.13
Per 1M tokens

New Venice accounts include a free daily allowance and 500 welcome credits — no credit card required.

Getting a key

From nothing to a first call

  1. 01

    Create a key in API settings. Nothing else is required to start.

  2. 02

    Export it as VENICE_API_KEY so the snippets above run unedited.

  3. 03

    Point an existing OpenAI client at https://api.venice.ai/api/v1. The scheme is part of the value: an OpenAI client given a bare host does not resolve it.

  4. 04

    Pass openai-gpt-61-sol as the model and send the request.

FAQ

Frequently asked questions

GPT-6.1 Sol is OpenAI's mid-tier frontier language model from the GPT-6 family, designed for complex coding and agentic workflows. It offers a 1,050K-token context window, 128K-token max output, vision, reasoning, function calling, and web search, and it has been available on Venice since September 2026.

Venice bills GPT-6.1 Sol per token: $2.50 per 1M input tokens, $12.50 per 1M output tokens, and $0.13 per 1M cached input tokens. There is no subscription required — you pay only for what you use.

Neither. GPT-6.1 Sol is a closed, proprietary OpenAI model with no published weights, so it cannot be self-hosted or fine-tuned. It is not free to run — Venice charges per token — though new Venice accounts include free welcome credits you can spend on it. If you need open weights, DeepSeek V4.1 Flash and Kimi K3 on Venice are the closest alternatives.

Yes. GPT-6.1 Sol supports function calling, structured JSON-schema output, and web search, making it suitable for agent loops and automation pipelines. It also accepts image input, including multiple images per request.

1,050K tokens — roughly a million tokens of input context — with up to 128K tokens of output per request. That is enough to hold entire codebases, long legal documents, or multi-book research corpora in a single prompt.

Both are closed mid-tier frontier models with ~1M-token contexts. GPT-6.1 Sol is cheaper on both input and output ($2.50/$12.50 vs $3.60/$18 per 1M) and leans toward coding and agentic work; Claude Sonnet 4.6 is a strong generalist for everyday knowledge work. Choose Sol for cost-sensitive agent loops and long-context coding.

Venice runs GPT-6.1 Sol under its anonymized privacy tier: prompts are not stored, tied to your identity, or used for training. Note that this model does not run in a TEE and the connection is not end-to-end encrypted end-to-end at the model layer — but zero retention of your prompts still applies.

Yes — it ships with OpenAI's standard content policies, and Venice does not offer an uncensored mode for closed proprietary models. If you need uncensored output, Venice hosts open-source models specifically for that; GPT-6.1 Sol is the pick for capability, not permissiveness.

The GPT-6 Sol family was announced by OpenAI on September 22, 2026, and GPT-6.1 Sol has been live on Venice since September 2026. It succeeds GPT-5.6 Sol, whose API pricing it undercut by 50% at the family's launch.

Use GPT-6.1 Sol anonymously

One key, free to start, no credit card.

Start chat