GPT 56
Source reports covering GPT 56. Stories will appear when analysis and community reactions are ready.
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Source reports
GPT 5.6 Sol 20% price reduction
tool
2 min read
OpenAI’s GPT-5.6 Sol is a frontier model for complex professional work and the top tier of the GPT-5.6 family. The gpt-5.6 alias routes requests to GPT-5.6 Sol, which roughly corresponds to the unsuffixed model tier in earlier GPT-5 families. It accepts text and image inputs and produces text output, with a 1,050,000-token context window, a maximum output of 128,000 tokens, and a February 16, 2026 knowledge cutoff. The model supports reasoning-effort settings of none, low, medium, high, xhigh, and max; medium is the default. It supports streaming, function calling, structured outputs, and a range of Responses API tools, including web search, file search, image generation, code interpreter, hosted shell, computer use, MCP, and tool search. Fine-tuning is not supported. GPT-5.6 Sol costs $4 per million input tokens, $0.40 per million cached-input tokens, and $20 per million output tokens. OpenAI says these rates represent 20% lower input pricing and 33% lower output pricing, with promotional pricing available at least through November 21, 2026. Requests containing more than 272,000 input tokens are billed at twice the input rate and 1.5 times the output rate for the entire request.
GPT-5.6 Sol Pricing Cut by 50%
tool
2 min read
GPT-5.6 Sol is OpenAI’s flagship model in the GPT-5.6 series, released on July 9, 2026. It is positioned for complex reasoning, coding, agentic workflows, command-line work, multi-step coding tasks, and long-horizon problem solving. The model has a 1 million-token context window and a February 2026 knowledge cutoff. OpenRouter lists pricing of $2.50 per million input tokens and $15 per million output tokens, reflecting a 50% discount from listed rates of $5 and $30. Provider listings shown on the platform include input prices from $5 to $5.50 per million tokens, output prices from $30 to $33, and cache pricing from $0.50 to $0.55. OpenRouter says actual customer prices can be lower because of caching and discounts. OpenRouter can route requests for GPT-5.6 Sol among multiple hosting providers through Balanced, Nitro, or Exacto modes, which prioritize price and speed, fastest response, or tool-calling accuracy, respectively. The platform reports a best-provider median latency of 3.07 seconds and a best-across-providers median throughput of 46 tokens per second. It reports 100.00% uptime over the prior three days and 99.76% availability, and says it can reroute requests after upstream-provider errors when request filters permit it. OpenRouter’s OpenAI-compatible API allows many SDKs to use the model by changing the base URL and model slug.
GPT 5.6 Sol is the best "vision" model OpenAI ever released
research
6 min read
OpenAI's GPT-5.6 lineup includes the Sol, Terra, and Luna models, with a focus on enhanced computer use and the ability to navigate desktop applications. The models demonstrate improved visual understanding, which will be evaluated using an upcoming visual language model benchmark.
Accelerating GPT-5.6 Sol Ultrafast
tool
4 min read
Cerebras and OpenAI have introduced Ultrafast Mode, a new service tier in the OpenAI API that accelerates GPT-5.6 Sol. This mode delivers up to 750 output tokens per second without compromising quality, targeting time-sensitive and mission-critical tasks.
Advancing the price-performance frontier with GPT‑5.6
tool
5 min read
OpenAI's GPT-5.6 improves efficiency across all layers, resulting in enhanced performance per dollar for enterprise workloads. Customers benefit from reduced prices for GPT-5.6 Luna and Terra, along with faster performance from GPT-5.6 Sol in the API.
"Drawing" the Mona Lisa with GPT-5.6, Claude, Gemini, and Grok
tool
10 min read
Four AI models, GPT-5.6, Claude, Gemini, and Grok, were tasked with drawing the Mona Lisa on a blank canvas using colored pencils. Each model executed strokes, blended colors, erased, and evaluated its work to refine the drawing.
Fable 5 vs. GPT-5.6 Sol on an NP-Hard Problem: Does /goal help?
research
7 min read
Fable 5 outperformed GPT-5.6 Sol on an NP-hard optimization problem. The use of the /goal mode did not significantly enhance performance for either model.
$100 AI Music Video: Claude Fable 5 vs. GPT-5.6 Sol
tool
8 min read
Claude Fable 5 and GPT-5.6 Sol autonomously directed music videos using a set budget, web search capabilities, and local ffmpeg tools. Each model researched video models, generated clips, edited footage, and assembled the final music video independently.
Migrating a production AI agent to GPT-5.6: 2.2x faster, 27% cheaper
tool
10 min read
Ploy's AI agent now operates on GPT-5.6 Sol, the latest model released by OpenAI. This transition follows extensive testing against Claude Opus, leading to GPT-5.6 Sol becoming the default model for all Ploy workspaces, enhancing its capabilities in building and editing marketing websites.
GPT-5.6
tool
19 min read
The GPT-5.6 family of models has been launched for general availability, featuring Sol as the flagship model, Terra for balanced everyday work, and Luna as the cost-efficient option. GPT-5.6 Sol achieves state-of-the-art results in coding, knowledge work, cybersecurity, and science, outperforming previous models with fewer tokens and lower estimated costs.
GPT-5.6 Sol, along with Terra and Luna, will launch publicly this Thursday
news
1 min read
GPT-5.6 Sol, along with Terra and Luna, will launch publicly this Thursday. We’re expanding preview access globally now. https://t.co/Uk5HcfSc2e
Previewing GPT‑5.6 Sol: a next-generation model
tool
9 min read
The GPT-5.6 series includes three models: Sol, Terra, and Luna. Sol is the flagship model, Terra offers competitive performance at half the cost of GPT-5.5, and Luna provides strong capabilities at the lowest price, while all models incorporate enhanced safety measures against higher-risk activities and misuse.