Baidu ERNIE vs RouterPlus: Token Pricing, Speed & Intelligence
Full comparison of Baidu ERNIE and RouterPlus — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Rates sourced from public APIs — verify before use.
Baidu ERNIE
ERNIE 5 — Baidu's frontier Chinese-English bilingual LLM API
Baidu ERNIE is the LLM API from Baidu, China's largest search company. The ERNIE 5 series includes ERNIE-5.1 (balanced) and ERNIE-5.0 (frontier), both optimised for Chinese-English bilingual tasks, knowledge retrieval, and enterprise applications. Pricing is in USD via the international API.
RouterPlus
API router / marketplace — 117 text models with per-route pricing
RouterPlus is an API router and marketplace offering access to 117+ text models. Prices shown are the published base catalog rates — actual price depends on the selected route and context, and is not a guaranteed bill. RouterPlus provides per-route pricing transparency with 27 models having numerically different route prices.
Key metric comparison
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Live token pricing
Strengths and weaknesses
Baidu ERNIE
RouterPlus
Key differentiators
ERNIE 5 is the leading Chinese-English bilingual LLM API, backed by Baidu's search knowledge graph — the go-to choice for applications targeting Chinese-language users.
An API router with 117 text models and per-route pricing transparency — the catalog rate is a published base rate, not a guaranteed bill; actual price depends on selected route and context.
Frequently asked questions
Baidu ERNIE FAQs
What is ERNIE?
ERNIE (Enhanced Representation through Knowledge Integration) is Baidu's LLM series. ERNIE 5 is the current generation, with ERNIE-5.1 (balanced) and ERNIE-5.0 (frontier) available via the Wenxin Qianfan API.
How much does the ERNIE API cost?
ERNIE-5.1 is $0.56/$2.53 per 1M input/output tokens. ERNIE-5.0 is $1.40/$5.60 per 1M tokens. See the Baidu Cloud pricing page for current rates.
Is ERNIE good for English tasks?
ERNIE 5 handles English competently but is primarily optimised for Chinese. For English-only workloads, frontier Western models typically outperform ERNIE. For Chinese or bilingual Chinese-English tasks, ERNIE is among the strongest options available.
RouterPlus FAQs
Are RouterPlus prices guaranteed?
No. RouterPlus prices shown are published base catalog rates. Actual price depends on the selected route and context. 27 models have numerically different route prices. Check route details before production use.
What models does RouterPlus offer?
RouterPlus offers 117 text models including Claude 5 (Fable 5.1, Opus 5-5, Sonnet 5-5, Haiku 5-5), GPT-6 Astra, Gemini 3.x, Grok 4.x, Kimi K3, GLM-5.3, Qwen 3.8 Max, DeepSeek V4 Pro, Mistral Large 4, and many more. See the model table for current rates.
What is the RouterPlus API base URL?
The RouterPlus API base is https://api.routerplus.com/v1 with OpenAI-compatible endpoints. See https://app.routerplus.com/docs/models for full documentation.
Provider resources
Baidu ERNIE — ERNIE 5 — Baidu's frontier Chinese-English bilingual LLM API
Baidu ERNIE is the LLM API from Baidu, China's largest search company. The ERNIE 5 series includes ERNIE-5.1 (balanced) and ERNIE-5.0 (frontier), both optimised for Chinese-English bilingual tasks, knowledge retrieval, and enterprise applications. Pricing is in USD via the international API.
ERNIE 5 is the leading Chinese-English bilingual LLM API, backed by Baidu's search knowledge graph — the go-to choice for applications targeting Chinese-language users.
RouterPlus — API router / marketplace — 117 text models with per-route pricing
RouterPlus is an API router and marketplace offering access to 117+ text models. Prices shown are the published base catalog rates — actual price depends on the selected route and context, and is not a guaranteed bill. RouterPlus provides per-route pricing transparency with 27 models having numerically different route prices.
An API router with 117 text models and per-route pricing transparency — the catalog rate is a published base rate, not a guaranteed bill; actual price depends on selected route and context.
Key strengths compared
Baidu ERNIE
- Strong Chinese-English bilingual performance — best-in-class for Chinese language tasks
- Deep integration with Baidu Search knowledge graph
- ERNIE-5.1 at $0.56/$2.53 per 1M tokens is competitive for a frontier-tier bilingual model
- Primarily optimised for Chinese — English performance trails frontier Western models
- Limited ecosystem outside China; fewer third-party integrations
RouterPlus
- Wide catalog: 117 text models including Claude, GPT, Gemini, Grok, Kimi, GLM, Qwen, Mistral, and more
- Per-route pricing transparency — see actual route prices, not just a blended rate
- OpenAI-compatible API at api.routerplus.com/v1
- Catalog rate is not a guaranteed bill — actual price depends on selected route and context
- API router/marketplace — not a direct compute provider
Key weaknesses compared
Baidu ERNIE
- Primarily optimised for Chinese — English performance trails frontier Western models
- Limited ecosystem outside China; fewer third-party integrations
- Documentation and support primarily in Chinese
RouterPlus
- Catalog rate is not a guaranteed bill — actual price depends on selected route and context
- API router/marketplace — not a direct compute provider
- 27 models have numerically different route prices; check route details before production use
Provider category context
Baidu ERNIE is a frontier lab, founded in 2000. RouterPlus is a inference api. Baidu ERNIE as a frontier lab trains and serves its own proprietary models. RouterPlus as an inference API provider hosts open-weight models — typically offering lower prices for equivalent capability tiers but without access to proprietary frontier models.
How to choose between them
Choose Baidu ERNIE if you need Chinese NLP. Choose RouterPlus if you need wide catalog: 117 text models including claude, gpt, gemini, grok, kimi, glm, qwen, mistral, and more. For high-volume production workloads, run a cost comparison using the token pricing table above with your actual prompt/completion token ratio — the cheapest provider depends heavily on your input-to-output token ratio.