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GPT 5.6 Sol vs GPT-OSS 20B

Specs, pricing, and capabilities side by side — plus outputs generated from identical prompts, so the only variable between the columns is the model.

Cloud

OpenAI's flagship GPT-5.6 tier — leads the family on every benchmark, for frontier coding, long-horizon agentic work, and research.

Learn more about GPT 5.6 Sol
Local

OpenAI's open-weight 20B reasoning model (Apache 2.0) with configurable reasoning effort and native tool calling — runs on 16 GB.

Learn more about GPT-OSS 20B
Overview
Creator
OpenAI
OpenAI
Available on
ReplicateRunware
Ollama
Model ID
openai/gpt-5.6-sol
ollama:gpt-oss:20b
Specs
Pricing
$5.00 / 1M in · $30.00 / 1M out
Free, runs on your hardware
Inputs
Text, Images
Context window
1.05M in · 128K out
Reasoning
Adjustable effort
Controls
System prompt
Runs locally
Supported OS
macOS, Windows, Linux
Minimum machine
16 GB RAM · 128K ctx · text · GPU recommended
Download size
~14 GB
Samples
Short answer
Plain language under a hard word cap
42 / 50 words

An API is a set of rules that lets one piece of software ask another for information or actions. For example, a weather app may use an API to request today’s forecast from a weather service, then display the result for you.

No sample yet
Medium answer
Judgment, structure, arguing against itself
103 / 150 words

Use a reputable hosted authentication provider. For a two-person startup, authentication is security-critical but rarely differentiating, and building it well requires ongoing work across password storage, account recovery, MFA, session management, abuse prevention, compliance, monitoring, and incident response. A provider lets you launch faster and reduces the chance that a subtle implementation flaw compromises users. Choose one with standards-based integrations and an export path to limit lock-in. The strongest argument against this recommendation is vendor dependency: pricing can rise sharply with user growth, and migrating authentication later can be difficult because password hashes, MFA credentials, sessions, and identity links may not transfer cleanly.

No sample yet
Long answer
Sustained structure across several points
223 / 190–220 words

AI spending is hard to predict because usage, pricing, and implementation costs can all change quickly. Unlike traditional software, many AI services charge according to consumption: the number of questions asked, documents processed, images created, or computing resources used. A successful pilot can therefore become much more expensive when thousands of employees or customers adopt it. A second cause is uncertainty about which technology will be needed. Different AI models vary greatly in price, speed, and quality, while vendors frequently release new versions and revise commercial terms. Teams may also discover that a cheaper model is adequate for routine work but that sensitive or complex tasks require more costly systems. Third, the model itself is only part of the bill. Reliable AI often requires data preparation, system integration, security controls, testing, human review, monitoring, training, and legal or compliance work. These supporting costs are easy to underestimate, particularly when projects move from demonstration to production. Executives can improve control by funding AI in stages, with clear limits and decision points. Require each project to define expected usage, business value, accuracy needs, and total operating cost. Track spending by team and use case, set alerts and quotas, and review actual costs monthly. Negotiate vendor protections, avoid unnecessary dependence on one provider, and maintain contingency budgets for rapid growth, compliance changes, or unexpected technical work.

No sample yet

Every sample is the model’s first result for the shared scene prompt — no cherry-picking — generated via Replicate or Runware. Hover a copy icon to read the full prompt.

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