Build Smarter.
Deploy Faster.
Scale Infinitely.
The Enterprise LLM Platform. Smart routing across top models, purpose-built for Agentic AI workflows and AI Coding at scale.
The Enterprise
LLM Platform.
Unified API for all models, intelligent routing, and output guardrails — built for teams that need reliability, observability, and cost control.
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
UNIFIED-API ROUTING=SMART INSURANCE=ON MODELS=60+ ZENN_KEY=ck_*** opus-4.6 gpt-5.3 gemini-3.1 deepseek-v3.2 qwen3.5 veo-3.1 STREAM=ON COST→OPTIMIZED LATENCY→LOW HALLUCINATION→BLOCKED
Unified API
One API key for 60+ models — Claude, GPT-5, Gemini, DeepSeek, Qwen, Veo, and more. Text, image, video. No juggling providers, no fragmented billing.
Intelligent Routing
Automatically route requests to the best model for cost, latency, or quality. Smart fallback ensures zero downtime when a provider goes down.
Output Guardrails
Reduce hallucination risk with built-in output validation and guardrails. Automated checks help catch errors before they reach your users.
65+ MODELS LIVE
One API.
Every Model.
Claude, GPT-5, Gemini, DeepSeek, Qwen, Veo, Fish Audio — text, image, video, and audio.
50% off official API pricing. Same rates as Claude Max ($200/mo) — pay as you go. One key. One bill.
65+
Models
7+
Providers
50%
Off Official
4
Modalities
Anthropic
3 models| Model | Input / MTok | Output / MTok | Savings |
|---|---|---|---|
Claude Opus 4.6Most Intelligent claude-opus-4-6 | $7.50 | $37.50 | −50% |
Claude Sonnet 4.6Best Balance claude-sonnet-4-6 | $1.50 | $7.50 | −50% |
Claude Haiku 4.5Fastest claude-haiku-4-5 | $0.40 | $2.00 | −50% |
OpenAI
11 models| Model | Input / MTok | Output / MTok | Savings |
|---|---|---|---|
GPT-5 gpt-5 | $1.25 | $5.00 | −50% |
GPT-5.1 gpt-5.1 | $1.25 | $5.00 | −50% |
GPT-5.2 gpt-5.2 | $2.50 | $7.50 | −50% |
GPT-5 Codex gpt-5-codex | $1.25 | $5.00 | −50% |
GPT-5 Codex MiniUltra Cheap gpt-5-codex-mini | $0.15 | $0.63 | −50% |
GPT-5.1 Codex gpt-5.1-codex | $1.25 | $5.00 | −50% |
GPT-5.1 Codex Mini gpt-5.1-codex-mini | $0.15 | $0.63 | −50% |
GPT-5.1 Codex Max gpt-5.1-codex-max | $1.25 | $5.00 | −50% |
GPT-5.2 Codex gpt-5.2-codex | $2.50 | $7.50 | −50% |
GPT-5.3 Codex gpt-5.3-codex | $2.50 | $7.50 | −50% |
GPT-5.3 Codex Spark gpt-5.3-codex-spark | $2.50 | $7.50 | −50% |
Google Gemini
14 models| Model | Input / MTok | Output / MTok | Savings |
|---|---|---|---|
Gemini 3 ProFlagship gemini-3-pro-official | $6.30 | $18.90 | −10% |
Gemini 3 Pro Preview gemini-3-pro-preview-official | $6.30 | $18.90 | −10% |
Gemini 3 Flash gemini-3-flash-official | $1.35 | $5.40 | −10% |
Gemini 3 Flash Preview gemini-3-flash-preview-official | $1.35 | $5.40 | −10% |
Gemini 3.1 Pro gemini-3.1-pro | $0.05 | $0.30 | −10% |
Gemini 3.1 Pro Preview gemini-3.1-pro-preview-official | $6.30 | $18.90 | −10% |
Gemini 3.1 Fast gemini-3.1-fast | $2.25 | $9.00 | −10% |
Gemini 3.1 Thinking gemini-3.1-thinking | $2.25 | $9.00 | −10% |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview-official | $0.68 | $2.70 | −10% |
Gemini 2.5 Pro gemini-2.5-pro-official | $4.50 | $18.00 | −10% |
Gemini 2.5 Flash gemini-2.5-flash-official | $1.13 | $4.50 | −10% |
Gemini 2.5 Flash Lite gemini-2.5-flash-lite-official | $0.36 | $1.35 | −10% |
Gemini 2.0 Flash gemini-2.0-flash-official | $0.45 | $1.80 | −10% |
Gemini 2.0 Flash LiteCheapest gemini-2.0-flash-lite-official | $0.27 | $0.90 | −10% |
DeepSeek / Qwen / GLM / Kimi
8 models| Model | Input / MTok | Output / MTok | Savings |
|---|---|---|---|
DeepSeek V3.2Popular deepseek-v3.2 | $0.99 | $3.96 | −10% |
Qwen 3.5 Plus qwen3.5-plus | $1.35 | $7.65 | −10% |
Qwen 3.5 Flash qwen3.5-flash | $0.45 | $2.70 | −10% |
Qwen 3 Max qwen3-max | $1.80 | $7.20 | −10% |
GLM-5 (Zhipu AI) glm-5 | $1.35 | $5.40 | −10% |
Kimi K2.5 (Moonshot) kimi-k2.5 | $1.35 | $7.20 | −10% |
MiniMax M2.5 MiniMax-M2.5 | $0.63 | $2.52 | −10% |
Nano Banana 2 nano-banana-2 | $0.05 | $0.30 | −10% |
All prices per million tokens (LLM) or per generation/request (Image/Video/Audio). 100 credits = $1 USD.
New models added weekly. One API key for everything.
Five Tools, One Key
Every AI coding tool.
Unified.
One Zenn API key works across all five tools. Full API call logs, real-time cost and usage dashboards, and per-model performance analytics.
🦞
170k+ StarsOpenClaw
The fastest-growing AI agent. Configure Zenn as your provider — Claude Sonnet/Opus, Codex, and Gemini 3.0 Pro through one lobster.
Models: Claude, GPT-5, Gemini, DeepSeek, Qwen + 60 more
~/.openclaw/openclaw.json
{
"models": {
"providers": {
"zenn-claude": {
"baseUrl": "https://zenn.engineering/api/v1",
"apiKey": "ck_YOUR_KEY",
"api": "anthropic-messages",
"models": [
{ "id": "claude-opus-4-6" },
{ "id": "claude-sonnet-4-6" }
]
},
"zenn-codex": {
"baseUrl": "https://zenn.engineering/api/v1/codex",
"apiKey": "ck_YOUR_KEY",
"api": "openai-responses"
},
"zenn-gemini": {
"baseUrl": "https://zenn.engineering/api/v1/gemini",
"apiKey": "ck_YOUR_KEY",
"api": "openai-completions"
}
}
}
}Anthropic
Claude Code
Drop-in proxy for Claude Code. Same CLI, same models — 50% off official pricing.
export ANTHROPIC_BASE_URL=https://zenn.engineering/api/v1Models: Opus 4.6, Sonnet 4.6, Haiku 4.5
Anomaly
OpenCode
Multi-provider coding agent. Configure once — access all models through one config file.
~/.config/opencode/opencode.jsonModels: Claude, GPT-5, Gemini, DeepSeek, Qwen + 60 more
OpenAI
Codex CLI
Route Codex CLI through Zenn. All GPT-5.x Codex models at 50% off official pricing.
export OPENAI_BASE_URL=https://zenn.engineering/api/v1/codexModels: GPT-5 / 5.1 / 5.2 / 5.3 Codex
Google
Gemini CLI
Full Gemini CLI compatibility. Massive context windows, lower cost.
export GEMINI_API_BASE_URL=https://zenn.engineering/api/v1/geminiModels: Gemini 3.1 / 3.0 / 2.5 Pro, Flash, Thinking
Simple Credit-Based Pricing
Start for $19.99
No subscriptions. Buy credits, use them anytime. The more you top up, the more models you unlock.
Most Popular
Starter
$19.99
1,999 credits
- All standard models
- 30-day credit expiry
- API key access
Unlocks Opus 4.6
Opus
$99.99
11,999 credits
- Claude Opus 4.6 unlocked
- All models included
- Priority queue
- 90-day credit expiry
+30% bonus
Business
$149.99
19,500 credits
- Claude Opus 4.6 unlocked
- All models included
- Priority queue
- 120-day credit expiry
+60% bonus
Mega
$499.99
80,000 credits
- Claude Opus 4.6 unlocked
- All models included
- Priority queue
- 240-day credit expiry
Enterprise
Built for teams
that ship fast.
From startups to growing teams — unified API access, intelligent routing, output guardrails, and developer analytics with enterprise-grade security.
SSO & Access Control
SAML/OIDC single sign-on, role-based access, and audit logs for your entire engineering org.
Intelligent Routing
Auto-route to the fastest or cheapest model. Smart fallback and load balancing for zero-downtime production.
Developer Analytics
Real-time API call logs, cost breakdowns, usage dashboards, and performance metrics per model and per key.
Output Guardrails
Automated output validation and hallucination detection to help improve response quality.
Ready to Ship Faster?
Claude Code, OpenCode, Codex CLI, Gemini CLI, and OpenClaw — all live. Drop in your API key and start coding in seconds.