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Solar Pro 4API
Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window.
Prices update automatically — checked daily against provider list prices.
- $0.05 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 100% of the 192 commercial models tracked here
Benchmarks & performance
Independent benchmark scores for Solar Pro 4, measured by Artificial Analysis. Higher is better.
Models at this level cost $1.35 per 1M tokens (median of 18) — this one costs $0.05.
No model tracked here is both cheaper and better on this index.
About this model
Solar Pro 4 is a commercial AI model by Upstage. The specifications below are tracked automatically: pricing is refreshed daily from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is Solar Pro 4?
Solar Pro 4 is an AI language model from Upstage. It is a proprietary model, available through an API. It scores 41.6 on the Artificial Analysis intelligence index.
Is Solar Pro 4 free?
Solar Pro 4 is not free: it costs $0.03 per million input tokens and $0.12 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is Solar Pro 4 good at?
Independent benchmarks from Artificial Analysis give it GPQA 89.1%, Humanity's Last Exam 29.2%, Long Context Reasoning 70.7%, SciCode 43.6%, τ-Bench Banking 23.3%, Terminal-Bench 57.3%. It is particularly used for code generation.
How fast is Solar Pro 4?
It generates about 51.1 tokens per second, with a median 1.22s delay before the first token. Measured independently by Artificial Analysis.