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LLMS • CURATED • UPDATED SEP 22, 2026

GPT-6 Sol

OpenAI's coding-focused GPT-6 model at half the price of GPT-5.6 Sol

GPT-6 Sol is OpenAI's September 22, 2026 update to GPT-5.6 Sol, priced at $2 per million input tokens and $10 per million output, down from $4/$20, a permanent price cut OpenAI has confirmed is not promotional. It is positioned for complex, repeated developer work: building features, reviewing code, debugging, and analyzing data. On the DeepSWE v1.1 software-engineering benchmark, independent testing found Sol reaches 68.8% at maximum effort for $2.14 per task, against Claude Fable 5's 69.9% at its highest effort setting for $21.63 per task, near-identical accuracy at roughly a tenth of the cost. OpenAI says it makes about half as many mistakes as GPT-5.6 Sol.

QUICK FACTS

Pricing Paid
Platforms web, api
API Yes
Open Source No
Modalities LLMs, IDEs & Coding Tools
Best For Best Value Coding Model
Date Added 2026-09-22

WHY WE PICKED IT

The near-parity DeepSWE result against Claude Fable 5 at a tenth of the cost is the reason to look at this model specifically for coding workloads: it is a real price war entry, not a token repricing with nothing behind it, though independent reviewers note overall intelligence scores are flat versus GPT-5.6 rather than improved.

STRENGTHS

LIMITATIONS

GETTING STARTED

Access via the OpenAI API at model id gpt-6-sol. Benchmark against your current GPT-5.6 Sol or Claude Fable 5 usage on your own coding tasks before fully switching over, since independent testing shows flat intelligence scores versus GPT-5.6 despite the price cut.

OFFICIAL LINKS

Website↗ API Docs↗

SIMILAR TOOLS

Google Antigravity 2.0 Claude Fable 5 GPT-6 Astra NotebookLM Claude Opus 5

PRICING

Paid

Requires a paid subscription.

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EXPLORE ALTERNATIVES

View GPT-6 Sol Alternatives (2026) →

Compare GPT-6 Sol with 5+ similar llms AI tools.

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FREQUENTLY ASKED QUESTIONS

Q

Is GPT-6 Sol free?

A

No, GPT-6 Sol requires a paid subscription.

Q

Does GPT-6 Sol have an API?

A

Yes, GPT-6 Sol offers an API for programmatic integration.

Q

What is GPT-6 Sol best for?

A

GPT-6 Sol is best for Best Value Coding Model. GPT-6 Sol is OpenAI's September 22, 2026 update to GPT-5. The near-parity DeepSWE result against Claude Fable 5 at a tenth of the cost is the reason to look at this model specifically for coding workloads: it is a real price war entry, not a token repricing with nothing behind it, though independent reviewers note overall intelligence scores are flat versus GPT-5.6 rather than improved.

Q

What platforms does GPT-6 Sol support?

A

GPT-6 Sol supports web, api.

Q

Is GPT-6 Sol open source?

A

No, GPT-6 Sol is not open source.

Q

How do I get started with GPT-6 Sol?

A

Access via the OpenAI API at model id gpt-6-sol. Benchmark against your current GPT-5.6 Sol or Claude Fable 5 usage on your own coding tasks before fully switching over, since independent testing shows flat intelligence scores versus GPT-5.6 despite the price cut.

Q

How do I use GPT-6 Sol?

A

GPT-6 Sol is a large language model for text generation, analysis, and conversation. Access through the web interface. Enter prompts or questions to get responses. It excels at 50% cheaper than gpt-5.6 sol on both input and output tokens, confirmed permanent pricing.

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Featured on CuratedAI