Upstage 推出的 Solar Pro 人工智能模型，具备 32K 上下文窗口，输入价格为 $0.25/百万 Token，输出价格为 $0.25/百万 Token，专为高质量生产环境、推理与自动化工作流打造。
Technical Specifications
- Provider
- Upstage
- Category
- flagship
- Release Date
- 2024-10
- Batch API Discount
- 50% off async batch
- Consumer Subscription
- API Pay-as-you-go
- Reasoning Effort Control
- Fixed
- Structured Outputs
- Yes
- Output Modalities
- text
- Official Documentation
- Visit Official Docs ↗
Data Privacy, Licensing & Deployment Governance
Official Provider Release Intelligence, API Quotas & Agentic Specs
- Official API Model ID (SDK String)
- solar-pro
- Supported SDK & API Protocol
- Upstage REST API (OpenAI-Compatible)
- Lifecycle & Deprecation Status
- Legacy Stable (Upgrade path available in Upstage lineup)
- Production Rate Limits (RPM & TPM)
- 5,000 – 15,000 RPM (Production Tier) · 800,000 – 2,000,000 TPM
- Long-Context Pricing Tier (>128K / >200K)
- Flat rate ($0.25/1M in) across full 33K window
- Prompt Cache Write & TTL Policy
- Cached input at $0.025/1M tokens
- Computer Use & Browser GUI Agent
- API / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop)
- MCP & Parallel Tool Calling
- Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema
- Web Search Grounding & Code Sandbox
- Supported via external Tavily/Exa Search & E2B/Docker Sandbox tools
- Fine-Tuning & Distillation Support
- API Prompt Engineering & RAG Distillation
- Multimodal Tokenization Billing
- Text BPE (~4 chars/token)
- Weights Precision & Quantization
- Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster)
- Minimum GPU VRAM Requirement
- Zero Local VRAM Required (100% Serverless Cloud API)
- Supported Inference Engines
- Managed Upstage Cloud API
- System Card & Safety Framework
- Upstage Production Safety & Alignment Verified
- Enterprise Compliance (SOC2 / HIPAA / ZDR)
- SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier
Solar Pro Cost, Context, Hardware & API Integration
Pay-as-you-go API is cheaper for this volume (saves $8.00/mo vs $20 flat plan).
Break-even point: ~833 requests/day equals $20/month.
Same Monthly Workload Cost Across Popular Reference Models
Live Prompt Paste Tokenizer & Cost Counter
Paste real system instructions, JSON schemas, or code to measure BPE token counts across tokenizers.
Hybrid Prompt Routing Cascade Simulator
Route routine queries to a fast lightweight model ($0.15/1M) and escalate only complex reasoning turns to Solar Pro:
Benchmark Scores & 6-Axis Capability Radar
- MMLU-Pro
- 73.5%
- HumanEval
- 81%
- Chatbot Arena Elo
- 1260pts
Strengths
- 由 Upstage 研发的高精度 Depth-Upscaled Dense Language Transformer 架构，支持 32K 上下文窗口
- 极具竞争力的 API 定价（输入 $0.25/1M，输出 $0.25/1M），支持高速推理与工具调用
- 在代码生成、逻辑推理与多语言处理基准测试中表现出色
Limitations & Trade-offs
- 超长上下文请求需要规划 Token 成本与并发配额
- 针对特定垂直领域任务建议结合系统提示词与检索增强（RAG）以获得最佳效果
Editorial Assessment
Solar Pro 是 Upstage 旗下极具代表性的模型，在性能、速度与 API 成本之间实现了卓越平衡。
Best for: 企业级 AI 自动化、代码研发、智能体（Agent）工作流以及 Upstage 生态深度集成
Compare Solar Pro
Frequently Asked Questions about Solar Pro
How much does the Solar Pro API cost per 1M tokens?+
Solar Pro by Upstage is priced at $0.25 per 1M input tokens and $0.25 per 1M output tokens. With prompt caching enabled, cached input tokens cost $0.025 per 1M tokens, and asynchronous Batch API requests receive a 50% discount.
Should I use a $20/month subscription or the Solar Pro pay-as-you-go API?+
A flat $20/month consumer subscription is predictable for daily interactive chat and manual coding. However, if you are building software, running automated workflows, or sending low-to-moderate volume with prompt caching enabled, the pay-as-you-go API is typically far more cost-effective and offers higher rate limits without manual UI caps.
How many words and pages fit in Solar Pro's context window?+
Solar Pro features a 33K tokens context window, which equals approximately 24,576 English words or ~66 standard single-spaced pages in a single prompt. Its maximum output generation per turn is 4,096 tokens.
Can I run Solar Pro locally on my own GPU (Open Weights)?+
No, Solar Pro is a proprietary closed-weights model hosted by Upstage. It cannot be downloaded for local GPU execution and must be accessed via Upstage's official API or cloud platform.
Does Upstage train on data sent to the Solar Pro API, and is commercial use allowed?+
API payloads are excluded from model training by default. License tier: Proprietary Commercial API (Upstage Terms). Full commercial ownership of generated outputs. Supported deployment channels include: Upstage Cloud API & Enterprise Endpoints.
How does Solar Pro perform on coding and reasoning benchmarks?+
Solar Pro achieves a composite Intelligence Index of 75/100, scoring N/A% on SWE-bench Verified, N/A% on GPQA Diamond, 73.5% on MMLU-Pro, and 1260 pts on Chatbot Arena Elo.
What is Solar Pro best used for?+
Solar Pro is best suited for: 企业级 AI 自动化、代码研发、智能体（Agent）工作流以及 Upstage 生态深度集成. Assessment: Solar Pro 是 Upstage 旗下极具代表性的模型，在性能、速度与 API 成本之间实现了卓越平衡。
AI Glossary & Architecture Concepts
View full glossary →Key machine learning concepts and benchmarks relevant to Solar Pro:
The basic unit of text that a language model processes, typically representing about 3 to 4 English characters or roughly 0.75 words. For example, the sentence "Artificial intelligence is fast" breaks down into about 5 tokens.
A standardized evaluation suite used to objectively measure and rank an AI model's capabilities across specific tasks — such as SWE-bench Verified for software engineering, AIME for competitive math, or MMLU for general knowledge.
The maximum number of tokens a model can consider at once — both the input it reads and the output it writes. A 1,000,000-token context window can hold roughly 750,000 English words in a single request.
The ability of a language model to recognize when an external capability is needed and output structured JSON arguments to invoke external APIs, databases, or terminal commands. The runtime executes the tool and passes results back to the model.
An open standard created by Anthropic that allows AI applications and agents to connect seamlessly to local filesystems, development environments, and third-party APIs via standardized server interfaces.
A cost and latency optimization where inference providers store pre-computed attention states for repeated prompt prefixes. Reusing cached tokens typically slashes API input costs by 50% to 90% and cuts TTFT substantially.
Benchmark scores, token prices, and rate limits evolve rapidly as AI labs release model updates. Always verify current specifications and pricing on the official provider documentation.