Solar Pro 4 via the Tokenator API
What the model is for
Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in office productivity, document-intensive work, and coding.
Specification
| Full name | Solar Pro 4 |
| API ID | solar-pro-4 |
| Model vendor | Upstage |
| Type | Text model (chat / completions) |
| Context window | 524.3K tokens |
| Max output | 131.1K tokens |
| Image input | no |
| Tokenator usage multiplier | 1.4× |
| Input modalities | text |
| Aliases | cursor-solar-pro-4 |
| Supported API formats | /v1/chat/completions /v1/responses /v1/messages |
| Upstream providers | 1 |
| Current status | available |
| Data updated | 2026-08-23 |
Benchmarks
| Intelligence index | 41.6 |
| Coding index | 52.7 |
| Agentic index | 33.6 |
Artificial Analysis data loaded into the catalog for this model.
Upstream providers
| Provider | Multiplier |
|---|---|
| Unified LLM API | 1.4× |
A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.
Example request
curl https://api.tokenator.top/v1/chat/completions \ -H "Authorization: Bearer sk-your-tokenator-key" \ -H "Content-Type: application/json" \ -d '{ "model": "solar-pro-4", "messages": [{"role": "user", "content": "Hello"}] }'
Compatible tools
The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, Cherry Studio, OpenClaw.
See also
FAQ about Solar Pro 4
What is the API ID of Solar Pro 4?
solar-pro-4 — put this into the model field of your request.
What context window does Solar Pro 4 have?
524.3K tokens; max output is 131.1K tokens.
How many tokens will a request cost?
(input + output) × 1.4×. See the documentation for details.
Which tools support this model?
Any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code. Setup guides are in the integrations section.