Go

Reliable access to open coding models with two usage tiers. Tested and benchmarked for coding agent use.

Go $10/mo · Go Plus $40/mo
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Usage Limits

Per-model monthly dollar limits. 5-hour — 20% of monthly, weekly — 50%, monthly — 100% of each model's limit.

5 Hour Limit
20%
of model's monthly limit
Weekly Limit
50%
of model's monthly limit
Monthly Limit
100%
full model monthly limit

Available Models

Live from opencode.ai/zen/go/v1/models — models may be added or removed as testing continues.

● API Only — model available via API but not yet listed in docs pricing ● Endpoint — SDK format: OpenAI SDK for /v1/responses, OpenAI-compatible for /v1/chat/completions, Anthropic SDK for /v1/messages
# Model Model ID Provider Endpoint

Estimated Requests by Model Hardcoded

Based on observed average request patterns. All three time windows shown side by side.

Bar chart showing estimated requests across 5-hour, weekly, and monthly periods.

Full Pricing & Limits Table Hardcoded

Token prices per 1M tokens. Monthly allocation per model for Go and Go Plus (token pricing is the same on both plans).

Model Input /1M Output /1M Cached Read /1M Cached Write /1M Monthly (Go) Plus Monthly Req / 5h Req / Week Req / Month

⚡ Usage Beyond Limits

If you also have credits on your Zen balance, you can enable the Use balance option in the console.

  • When enabled, Go falls back to your Zen balance after reaching usage limits
  • Instead of blocking requests, it charges against your balance
  • Track current usage in the OpenCode console
  • If limits are reached without balance enabled, you can still use free models

📉 Why Some Models Have Lower Usage

With Go, the included monthly usage varies by model.

  • Most models: bulk discounts + reserved GPU capacity keep usage high
  • Some models are new or already priced competitively — no discount negotiated yet
  • These models still give slightly more than paying providers directly
  • Go Plus raises the monthly limit on every model
Data sourced from opencode.ai/docs/go · Models API: /zen/go/v1/models · Built with live data — refresh for updates