No monthly fee, no plan, no minimum top-up. Top up what you want, use what you need. When the upstream raises prices we follow up; when they cut we follow down. The ratio doesn't move.
Price is fixed — payment method doesn't change it. The cards below just describe the onboarding flow and who each fits.
WeChat / Alipay
Solo developers, side projects, small tools — fastest path to start.
USDT (TRC20 / ERC20)
Technical teams, overseas projects, FX-sensitive customers.
Wire transfer
Companies needing fapiao, monthly settlement, dedicated rep.
All prices per 1M tokens, in USD. Claude price = Anthropic official × 0.30 (3折); GPT as low as 1/30 of official. The strikethrough shows the official list price so you can reconcile.
| Model | Input $/MTok | Output $/MTok | Cache Write (5m) | Cache Read | Batch (In / Out) |
|---|---|---|---|---|---|
| claude-opus-4-7 | $15.00$4.50 -70% | $75.00$22.50 -70% | $18.75$5.63 | $1.50$0.45 | $7.50/$37.50$2.25 / $11.25 |
| claude-opus-4-6 | $15.00$4.50 -70% | $75.00$22.50 -70% | $18.75$5.63 | $1.50$0.45 | $7.50/$37.50$2.25 / $11.25 |
| claude-sonnet-4-6 | $3.00$0.90 -70% | $15.00$4.50 -70% | $3.75$1.13 | $0.30$0.09 | $1.50/$7.50$0.45 / $2.25 |
| claude-haiku-4-5 | $1.00$0.30 -70% | $5.00$1.50 -70% | $1.25$0.38 | $0.10$0.03 | $0.50/$2.50$0.15 / $0.75 |
/v1/responses (base_url=…/v1, wire_api=responses). Full GPT model list + per-model unit prices are kept in sync with OpenAI's official table and announced in the Telegram group.Claude prices track Anthropic's official list; discount ratio stays at 0.30 (3折); GPT as low as 1/30 of official. Last sync: 2026-05-02 (Claude Opus 4.7 in table).
Model × monthly volume = bill. The "SACTL monthly" line is what you actually pay — no hidden markups.
144,000 req/mo · 500 in + 300 out each · Q&A, form parsing, multi-turn context
SACTL monthly
$259.20
Official list: $864.00
Save $604.80/mo (70%)
3,000 req/mo · 20K in + 2K out · Long-doc compliance review, financial risk
SACTL monthly
$405.00
Official list: $1,350.00
Save $945.00/mo (70%)
1,000,000 req/mo · 500 in + 200 out · Bulk classification, tagging, realtime completions
SACTL monthly
$450.00
Official list: $1,500.00
Save $1,050.00/mo (70%)
Claude is 30% across the board (× 0.30) — Opus / Sonnet / Haiku, same ratio, no usage tiers; GPT (codex / gpt-5.5) is as low as 1/30 of official. No monthly fee, no plan, no minimum top-up — $10 works. Billed per token. Each response header reports x-sactl-usage-cost-usd so you can reconcile with a calculator.
WeChat / Alipay: Telegram support sends a payment slip; scan to pay = instant credit. USDT: we send a wallet address; on-chain confirmation (~1 min on TRC20, a few minutes on ERC20) = credit. Wire transfer: we send the bank info; T+1 settlement; annual frame deals possible. FX is settled at the day's USD mid-rate — no spread on top.
Yes, both 普票 (general) and 专票 (special VAT). WeChat / Alipay top-ups above $50 are eligible for 普票; wire transfers can get 专票 with company name, tax ID, and bank info. Invoice content is usually "技术服务费 / 软件服务费" — adjustable for your finance department. Send the request to Telegram support.
Claude Code: set ANTHROPIC_BASE_URL=https://api.sactl.ai + ANTHROPIC_AUTH_TOKEN=sk-xa-*. Codex CLI: add a custom provider in ~/.codex/config.toml with base_url=https://api.sactl.ai/v1, wire_api=responses, env_key=SACTL_API_KEY. OpenAI SDK: set base_url to https://api.sactl.ai/v1, swap the API key to sk-xa-*. Cursor: in settings, set Custom OpenAI Endpoint to the SACTL URL. Full guide: docs.
Singapore + Hong Kong dual-route, ~80ms average latency. Multi-account upstream pool: when one upstream account hits risk control, our backend swaps to the next; the client sees a 200. We can't dodge global Anthropic outages — but we post status to the Telegram group when they happen. We can share runtime history on request.
Balance is refundable on request at any time (after deducting what you've used) — message Telegram support. If we ever shut down, we give 30 days notice and refund all balance pro-rata to the original payment channel. We do not sell prompts, do not store request bodies, and do not resell your data. That's the floor.
Message us on Telegram and get your first sk-xa-* in minutes — works with Claude Code and Codex CLI out of the box.