SiliconFlow Free Model Inference
Source: https://www.siliconflow.com/
Description
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+ 1 SiliconFlow is a Chinese AI infrastructure platform offering free inference for select smaller models and extremely competitive pricing across 100+ open-source and commercial models. New users get $1 in free credits on signup. The platform provides an OpenAI-compatible API supporting text, image, video, and audio generation with models from DeepSeek, Qwen, Meta Llama, Mistral, and more. SiliconFlow claims up to 2.3x faster inference and 32% lower latency than leading competitors. Free model access is limited to 50 requests/day for unpaid accounts (upgradeable to 1,000/day with a $10 credit purchase).
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+ 7 1. Go to siliconflow.com and click Sign Up
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+ 8 2. Create an account (email registration)
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+ 9 3. You automatically receive $1 in free credits upon signup
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+ 10 4. Navigate to your dashboard to generate an API key
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+ 11 5. Set the base URL to SiliconFlow's OpenAI-compatible endpoint
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+ 12 6. Start making requests — select free models for zero-cost inference or use credits for premium models
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+ 13
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+ 14 Important:
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+ 15 • No credit card required for signup
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+ 16 • Free credits are one-time, not recurring
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+ 17 • Free model rate limits are very restrictive (50 RPD) unless you top up
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+ 18 • The platform is based in China but serves global users
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+ 26 ModelInput Price/M TokensOutput Price/M TokensNotes
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+ 27 Qwen2.5-VL-7B-Instruct$0.05$0.05Vision + video understanding
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+ 28 Meta-Llama-3.1-8B-Instruct$0.06$0.06Multilingual chat
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+ 29 Qwen3-8B$0.06$0.06100+ languages, 131K context
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+ 30 GLM-4-9B-0414$0.086$0.086Code gen, web design
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+ 34 ModelInput Price/M TokensOutput Price/M Tokens
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+ 35 DeepSeek-V3.2-Exp$0.27$0.41
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+ 36 Qwen2.5-72B$0.40$0.40
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+ 37 DeepSeek-R1VariesVaries
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+ 41 ModelCategory
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+ 42 Qwen3-235B-A22BGeneral-purpose flagship
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+ 43 Qwen3-Coder-480B-A35B-InstructCoding specialist
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+ 44 QwQ-32BDedicated reasoning
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+ 45 MiniMax-M2Frontier model
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+ 49 SiliconFlow also supports image generation models with per-output pricing.
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+ 55 FeatureFree (L0)After $10 Purchase
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+ 56 Free credits$1 on signup—
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+ 57 Free model daily requests50/day1,000/day
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+ 58 Paid model accessYes (uses credits)Yes
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+ 59 API compatibilityOpenAI-compatibleOpenAI-compatible
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+ 60 Rate limit tierL0 (most restrictive)Auto-upgrades based on spend
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+ 61 Monthly spending limitConfigurableConfigurable
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+ 62
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+ 64
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+ 65 TierMonthly SpendRate Limits
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+ 66 L0$0Most restrictive
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+ 67 L1+Based on spendProgressively higher
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+ 68
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+ 69 Rate limits auto-upgrade when monthly spending reaches the next tier threshold.
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• OpenAI drop-in replacement — change base_url to SiliconFlow's endpoint and swap your API key. Works with OpenAI SDK, LangChain, LiteLLM, and most compatible tools
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+ 76 • Buy $10 in credits to unlock 1,000 daily free model requests (20x the default). This is the single best move for free-tier maximizers
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+ 77 • Free model requests are separate from credits — using designated free models does not consume your $1 credit balance
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+ 78 • Set a monthly spending limit in your dashboard to prevent unexpected charges
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+ 79 • Auto-tier upgrades — your rate limits automatically increase as you spend more per month. No manual tier changes needed
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+ 80 • Speed advantage — SiliconFlow benchmarks show 2.3x faster inference than some competitors, which matters for latency-sensitive applications
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+ 81 • Volume discounts available upon request for high-volume usage
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+ 82 • Chinese origin — the platform documentation is available in both English and Chinese. Some UI elements may default to Chinese
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+ 83 • Compare with alternatives — for free-tier inference, also check out Groq (speed-focused), Cerebras (fast), and HuggingFace Inference (breadth)
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+ 87 Sources:
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+ 88 • SiliconFlow Platform
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+ 89 • SiliconFlow Pricing
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+ 90 • SiliconFlow Models
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+ 91 • SiliconFlow Rate Limits Documentation
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+ 92 • SiliconFlow Cheapest LLM Models Guide
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+ 93 • SiliconFlow Release Notes
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