# Cloudflare Workers AI vs StepFun API (slim)

> Cloudflare Workers AI scores 68.3 (B) to StepFun's 44.4 (E) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-stepfun-api.md (~2,850 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-stepfun-api.json · canonical https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-stepfun-api
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-12

Cloudflare Workers AI scores 68.3 (B) on agent readiness against StepFun API's 44.4 (E), and leads in every scored category. Both do llm inference.

- Cloudflare Workers AI: B 68.3, rank #226 of 965 · https://www.anchorterminal.com/tools/cloudflare-workers-ai.min.md
- StepFun API: E 44.4, rank #889 of 965 · https://www.anchorterminal.com/tools/stepfun-api.min.md
- Cloudflare Workers AI, good for Agents that already run on Cloudflare Workers, or that want open-weight chat, embedding, reranking, speech and image models behind one token with a free daily allowance. Ahead on Reliability, 66 against 28; Schema & documentation, 80 against 53; Agent ergonomics, 75 against 68; Security & auth, 77 against 41; Payments & pricing, 52 against 20; Maintenance & community, 72 against 50; Transparency & trust, 76 against 58.
- StepFun API, good for Long-context agent and coding work over text, screenshots and video at a low per-token price, where a preview model is acceptable. Also No incidents deducted, where Cloudflare Workers AI loses 3 points for them.

| Category | Cloudflare Workers AI | StepFun API |
| --- | --- | --- |
| Reliability (16%) | 66 | 28 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 80 | 53 |
| Agent ergonomics (13%) | 75 | 68 |
| Security & auth (14%) | 77 | 41 |
| Payments & pricing (10%) | 52 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 72 | 50 |
| Transparency & trust (7%) | 76 | 58 |

| Fact (where they differ) | Cloudflare Workers AI | StepFun API |
| --- | --- | --- |
| Vendor | Cloudflare, Inc. | StepFun |
| Hosted endpoint | `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai` | `https://api.stepfun.ai/v1` |
| Pricing | Freemium | Pay per use |
| x402 | payer tooling only | no |
| Licence | Proprietary service under Cloudflare's Self-Serve Subscription Agreement. Each hosted model carries its own open-weight licence, linked from its model page. The `cloudflare` SDKs are Apache-2.0, `workers-ai-provider` is MIT and the OpenAPI repository is BSD-3-Clause | Closed service under the StepFun Open Platform Terms of Service (STEPFUN TECHNOLOGY (HK) LIMITED, Hong Kong law). |
| Last release | 2026-10-01 | none |
| Terms last updated | 2025-09-12 |  |
| Privacy policy last updated | no date given |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | yes |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 380k npm/wk | none |