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GPT-6 Sol

Reasoning model by OpenAI.

OpenAI advanced reasoning model. Utilizes structured deliberation tokens for multi-step reasoning, mathematical problem solving, and complex logic.

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Models / GPT-6 SolID: openai/gpt-6-sol

Context window

Maximum input context length.

200K

tokens

Max output

Maximum completion tokens per request.

33K

tokens

Maker

OpenAI

Served On: OpenAI

Specifications

Context window, ranked against other reasoning models

Proportional scale: 0 to 200K tokens. Not ranked, no published context window: gpt-5.2-pro-2025-12-11, gpt-5.4-pro, grok-4-1-fast-non-reasoning, grok-4-1-fast-reasoning, gpt-5.2-pro.

Context window

200.0K

tokens
Max output

33K

tokens
Modality

reasoning

Vision
Function calling
System prompt

Pricing

Rates are read live

Pricing for gpt-6-sol is fetched from the live catalogue on load, so it is never served from a cache that could outlive a repricing.

Availability

Not enough data yet

We have not collected enough health probes for this model to publish an uptime or latency figure. A percentage from a handful of samples is fabricated precision, so none is shown until the sample count supports one.

How GPT-6 Sol is billed

Billed at the provider's list price, with no per-token markup.

Exact list price
Tokens settle at the published rate of the model that served your call.
Cache discounts passed through
Provider prompt-caching discounts reach your balance with no added fee.
Cost on every response
Each response carries the x-nr-request-cost header, so you can reconcile spend per request.

More from OpenAI

gpt-oss-120b-1gpt-6.1-solgpt-5.2-pro-2025-12-11gpt-audio-1.5

Start building with gpt-6-sol

One API key, three steps. Choose your tool to begin.

  1. Get a key

    Create API key

  2. Set your API key

    export NROUTER_API_KEY="<YOUR_API_KEY>"

  3. Configure Claude Code

    Choose a tool, then copy its setup from the panel.

npm install -g @anthropic-ai/claude-code
Claude Code · openai/gpt-6-sol
# Point Claude Code to nRouter gateway
export ANTHROPIC_BASE_URL="https://api.nrouter.ai"
export ANTHROPIC_API_KEY="$NROUTER_API_KEY"

# Launch with openai/gpt-6-sol
claude --model openai/gpt-6-sol

FAQs

What is GPT-6 Sol?

OpenAI advanced reasoning model. Utilizes structured deliberation tokens for multi-step reasoning, mathematical problem solving, and complex logic.

How much does GPT-6 Sol cost?

GPT-6 Sol is billed at the provider's list price on nRouter with no per-token markup — tokens settle at the exact upstream rate. Input and output rates are read live, so see the pricing section above for the current figures.

What is the context length of GPT-6 Sol?

GPT-6 Sol supports a 200,000-token context window. It can generate up to 32,768 output tokens per request.

Does GPT-6 Sol support tool calling and structured outputs?

Yes. GPT-6 Sol supports tool calling (function calling), so it can invoke external tools and APIs during a conversation.

What inputs and outputs does GPT-6 Sol support?

GPT-6 Sol takes text and images as input and returns text as output.

How do I use GPT-6 Sol via nRouter?

Use any OpenAI-compatible client: point it at https://api.nrouter.ai/v1 with your nRouter API key and set the model to "openai/gpt-6-sol". The quick-start panel above has a copy-paste curl command for this model.

When was GPT-6 Sol released?

GPT-6 Sol was released on October 7, 2026.

Where is the GPT-6 Sol documentation?

Start at nrouter.ai/docs. The quick-start guide (nrouter.ai/docs/getting-started/quick-start) covers API keys and your first request, and the API reference (nrouter.ai/docs/api-reference) lists every parameter.

What other text models does OpenAI have?

Other OpenAI text models on nRouter include GPT-OSS 120B 1 (nrouter.ai/models/gpt-oss-120b-1), GPT-6.1 Sol (nrouter.ai/models/gpt-6.1-sol), GPT-5.2 Pro (nrouter.ai/models/gpt-5.2-pro-2025-12-11), GPT Audio 1.5 (nrouter.ai/models/gpt-audio-1.5).