OpenAIReasoning & MultimodalActive
GPT-5.6 Sol
OpenAI's flagship GPT-5.6 model for complex reasoning, coding, and professional workloads.
Facts Verified
Aug 25, 2026
Status
Active
Profile
Source-backed
Context
1.05M tokens
Max output
128K tokens
API
Available
Specifications
Context
1.05M tokens
Max output
128K tokens
CompanyOpenAI
Release DateJul 9, 2026
StatusActive
License / AvailabilityDirect API available
Capability Map
Verified fieldsReasoning
Supported
Vision
Supported
Audio
Not published
Video
Not published
API
Supported
Open weights
Not published
Input modalities
textimage
Output: text
Developer API Rates
Public rateInput / 1M
$4.00
Output / 1M
$20.00
Cached $0.4000 / 1MLong context from 272,000 tokens
Long-context rate: $8.00 input · $30.00 output / 1M tokens
Prompts above 272K input tokens use 2x input and 1.5x output rates for the full request.
OpenAI states the current Sol promotional pricing is available at least through November 21, 2026.
Cache writes are billed at 1.25x uncached input.
Verified Capabilities
- 1.05M tokens published context window
- 128K tokens published maximum output
- Reasoning support listed by the provider
- Multimodal input: text, image
Pricing & Availability Notes
- A separate long-context pricing tier starts at 272,000 tokens
- Prompts above 272K input tokens use 2x input and 1.5x output rates for the full request.
- OpenAI states the current Sol promotional pricing is available at least through November 21, 2026.
- Cache writes are billed at 1.25x uncached input.
Provider API model ID
Use this identifier in the provider API where supported.
gpt-5.6-sol