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Upstage · API-only (closed weights)

solar-pro2

solar-pro2 is an API-only (closed weights) language model from Upstage, released May 20, 2025. The context window is 64K tokens. API price: $0.25 input / $0.25 output per million tokens.

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Lab
Upstage
Released
May 20, 2025
Weights
API-only (closed weights)
Parameters
–
Context
64K
Price / M tokens
$0.25 / $0.25 in / out
Epoch ECI
not yet rated

Benchmark results

Epoch AI has not published results for solar-pro2 yet. New models are usually evaluated within days to weeks.

More from Upstage

Solar Mini 4 · Solar Pro 4 · Solar Open2 250B · solar-pro3 · Solar Open 100B

Data updated Thu, 12 Nov 2026 09:42 UTC. Benchmarks, Capabilities Index and model announcements: Epoch AI, “Capabilities & benchmarking” and “Data on AI models” (CC BY 4.0); category scores are ModelTape's own fit on Epoch's results. Releases and prices: models.dev (MIT). Sizes and quantizations: Hugging Face. “Runs on” figures are estimates from model size, quantization and memory bandwidth (±30–50%).
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