GPT-6 Sol
- Price
- Paid
- API
- Yes
- Weights
- No
WHAT IT DOES
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.
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.
QUICK FACTS
STRENGTHS
- ✓50% cheaper than GPT-5.6 Sol on both input and output tokens, confirmed permanent pricing
- ✓Near-parity with Claude Fable 5 on DeepSWE v1.1 at roughly a tenth of the cost per task
- ✓OpenAI reports about half as many mistakes as its predecessor
- ✓Positioned specifically for repeated, high-volume developer work
LIMITATIONS
- ⚠Independent reviewers report overall intelligence scores are flat versus GPT-5.6, not improved
- ⚠Gains and regressions vary by evaluation, not a uniform upgrade
- ⚠Closed weights, no self-hosting option
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.
PRICING
Requires a paid subscription.
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EXPLORE ALTERNATIVES
Compare GPT-6 Sol with 5+ similar llms AI tools.
FREQUENTLY ASKED QUESTIONS
Is GPT-6 Sol free?
No, GPT-6 Sol requires a paid subscription.
Does GPT-6 Sol have an API?
Yes, GPT-6 Sol offers an API for programmatic integration.
What is GPT-6 Sol best for?
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.
What platforms does GPT-6 Sol support?
GPT-6 Sol supports web, api.
Is GPT-6 Sol open source?
No, GPT-6 Sol is not open source.
How do I get started with GPT-6 Sol?
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.
How do I use GPT-6 Sol?
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.
FEATURED ON CURATEDAI
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