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GPT 6 Sol

Legacy$$$Premium
OpenAI#1Math
CompareChat

OpenAI's high-end GPT-6 tier for demanding professional work below flagship cost. 1M-token context with strong reasoning, coding, and multi-step tool use, positioned between GPT 6 Astra and the fast GPT 6 Luna tier. Built for advanced analysis, large-codebase engineering, deep research, and sustained agentic workflows. Superseded by GPT 6.1 Sol.

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GPT 6 Sol is very affordable at $2.00/M tokens input and $10.00/M tokens output. Cached input reads are priced at $0.20/M tokens, making repeated context cheaper. The model supports vision/image input, extended reasoning, a 1.1M context window.

Best forExpert reasoningLong-context analysisVision tasks
Replaced by
OpenAIGPT 6.1 Sol Pro

Same-price upgrade: fewer factual errors, stronger instruction-following.

See the full deprecation timeline

Benchmarks

CodingInsufficient data
AgenticInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02

Category Rankings

Math
#1of 121
Reasoning
#7of 123

Specifications

Vision
Audio
Reasoning
1.1M
Context
128K
Max output

Performance

Providers

Misc

September 22, 2026
Released
Same family
OpenAIGPT 6 AstraOpenAIGPT 6 Astra ProOpenAIGPT 6 LunaOpenAIGPT 6 Luna ProOpenAIGPT 6 Sol Pro
CompareChat with GPT 6 Sol

Compare with

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Frequently Asked Questions about GPT 6 Sol▼

When was GPT 6 Sol released?

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GPT 6 Sol was released on September 22, 2026.

Who created GPT 6 Sol?

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GPT 6 Sol was created by OpenAI.

How much does GPT 6 Sol cost?

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GPT 6 Sol costs $2.00/M input tokens and $10.00/M output tokens.

What is GPT 6 Sol API pricing?

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The GPT 6 Sol API is priced at $2.00 per million input tokens and $10.00 per million output tokens. You can access GPT 6 Sol through idapt.app alongside 200+ other AI models in one workspace.

Is GPT 6 Sol a reasoning model?

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Yes, GPT 6 Sol is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.

Does GPT 6 Sol support image or vision input?

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Yes, GPT 6 Sol supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.

Does GPT 6 Sol support audio?

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No, GPT 6 Sol does not support audio input.

What is the context window of GPT 6 Sol?

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GPT 6 Sol has a context window of 1.1M tokens, meaning it can process approximately 787,500 words of context at once.

Is GPT 6 Sol open source?

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GPT 6 Sol is a proprietary model developed by OpenAI. The model weights and training data are not publicly available.

What is GPT 6 Sol good at?

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Based on benchmark data, GPT 6 Sol excels at: mathematical problem solving, visual analysis and image understanding. It is OpenAI's capable model suitable for a wide range of tasks.

Where can I use GPT 6 Sol?

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You can chat with GPT 6 Sol on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access GPT 6 Sol through OpenAI's own API or platform.

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