Mid-tier Mainstream models Direct connect ★ 3.7 / 5

DuckCoding Review: Pricing & Comparison

$1 signup credit, tiered pricing, corporate invoicing supported, focused on coding use cases

Last verified: 2026-08-11 · Visit official site →

How coding developers should think about picking a relay

Programmers tend to prioritize relay platforms differently than the average user:

  1. No unexpected dropouts: an API failing mid-coding-session is worse for the experience than any latency issue
  2. A large enough context window: code review and refactoring often require sending an entire file, or even a whole module — 128k+ context is a hard requirement
  3. Low latency: real-time completion and Q&A are latency-sensitive — a response taking more than 3 seconds breaks your workflow
  4. Reasonable pricing: developer usage volume is typically not low, so price matters a lot for sustained use

DuckCoding is positioned around exactly these needs, focused on coding-oriented relay service.

How to use the $1 signup credit

DuckCoding’s $1 signup credit makes testing extremely cheap (note: the $1 signup credit could not be re-verified on the official site). We’d suggest using it to verify the following:

Testing a Claude Code integration:

export ANTHROPIC_API_KEY="your DuckCoding API key"
export ANTHROPIC_BASE_URL="https://api.duckcoding.ai"  # check the official site for the actual endpoint

# Confirm the Claude Code integration works
claude --version  # verify the configuration took effect

Testing a Cursor/VSCode integration (OpenAI-compatible mode):

{
  "openai.apiKey": "your DuckCoding API key",
  "openai.apiBaseUrl": "https://api.duckcoding.ai/v1"
}

Run a few real coding tasks with the credit (code review, refactoring suggestions, bug analysis), observe the response quality and speed, and then decide whether to top up for real.

The value of corporate invoicing

Corporate invoicing isn’t common in the relay market, but it matters a lot for companies with formal reimbursement requirements.

DuckCoding supports corporate invoices, which means it can enter a company’s formal procurement process — rather than an employee personally topping up and then filing for reimbursement, the company can purchase directly. That has real value for enterprise teams with a larger IT budget.

Tiered pricing

DuckCoding uses tiered pricing: different models and usage levels map to different price tiers.

The exact tier structure is subject to the duckcoding.ai official site. Before topping up, we’d recommend carefully confirming which price tier the model you actually use most (Claude Opus, or DeepSeek V4?) falls into, so you can estimate your real costs accurately.

  • TokenRiver: an enterprise-grade AI model gateway, 650+ models, a favorable ¥1=$1 exchange rate, multi-channel automatic failover, redirect target of the former Shiyun Cloud API
  • AI21 Labs API: Jamba hybrid architecture, long-context at low cost, enterprise NLP specialty
  • Moonshot AI (Kimi): Kimi’s official API, 128k ultra-long context, excellent document-processing capability
  • MNAPI: cross-vendor quality monitoring, All-in-One aggregation, competitive leaderboard comparisons

Quick facts

Pricing modelMultiplier billing (1¥ = $1); Claude Code 1.5x peak / 1.3x off-peak, CodeX 0.8x/0.6x, Gemini CLI 1.5x/1.3x; cumulative top-up tiers ¥500/¥1000/¥2000+; top up ¥1000 get ¥1500 credit
Model coverageClaude/GPT/Gemini/DeepSeek/Grok/GLM — 26+ models, specialized in Claude Code/CodeX/Gemini CLI
Latency / SLAMainland direct connect, latency optimized for coding use cases
Mainland direct connectDirect connect
Best forDevelopers / Enterprise
Referral programNo public affiliate/referral program found.

Pros

  • $1 signup credit: a low-cost trial that lets you test real-world coding performance before deciding whether to top up
  • Corporate invoicing supported: in a relay market mostly geared toward individuals, DuckCoding offers corporate invoices, meeting company procurement needs
  • Focused on coding use cases: the platform and its documentation are built for programmers, cutting out unrelated noise

Cons

  • Its coding-first focus means limited support for non-technical use cases
  • Several other relay platforms target the same coding-developer niche, so DuckCoding's differentiation needs to be judged through hands-on use
  • The tiered pricing structure requires careful reading to confirm which tier your chosen model falls into

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