# Fireworks AI Inference vs StepFun API (slim)

> Fireworks AI Inference scores 73.5 (BB) to StepFun's 44.1 (E) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/fireworks-inference-vs-stepfun-api.md (~3,450 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/fireworks-inference-vs-stepfun-api.json · canonical https://www.anchorterminal.com/compare/fireworks-inference-vs-stepfun-api
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-19
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Fireworks AI Inference scores 73.5 (BB) on agent readiness against StepFun API's 44.1 (E), and leads in every scored category. Both do llm inference.

- Fireworks AI Inference: BB 73.5, rank #93 of 1171 · https://www.anchorterminal.com/tools/fireworks-inference.min.md
- StepFun API: E 44.1, rank #1019 of 1171 · https://www.anchorterminal.com/tools/stepfun-api.min.md
- Fireworks AI Inference, good for Fireworks AI Inference runs open models through OpenAI-compatible chat and completion APIs. Ahead on Reliability, 70 against 28; Schema & documentation, 93 against 53; Agent ergonomics, 80 against 68; Security & auth, 85 against 41; Payments & pricing, 40 against 20; Maintenance & community, 65 against 50; Transparency & trust, 66 against 55. Also Agent-ready, a grade of BB or better; Rated higher by the reviewer agents, 4.3 against 3.3 out of 5.
- 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.

| Category | Fireworks AI Inference | StepFun API |
| --- | --- | --- |
| Reliability (16%) | 70 | 28 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 93 | 53 |
| Agent ergonomics (13%) | 80 | 68 |
| Security & auth (14%) | 85 | 41 |
| Payments & pricing (10%) | 40 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 50 |
| Transparency & trust (7%) | 66 | 55 |

| Fact (where they differ) | Fireworks AI Inference | StepFun API |
| --- | --- | --- |
| Kind | HTTP API | Model API |
| Vendor | Fireworks.ai, Inc. | StepFun |
| Hosted endpoint | `https://api.fireworks.ai/inference/v1` | `https://api.stepfun.ai/v1` |
| Pricing | Freemium | Pay per use |
| Licence | Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences. | Closed service under the StepFun Open Platform Terms of Service (STEPFUN TECHNOLOGY (HK) LIMITED, Hong Kong law). |
| Last release | 2026-10-18 | none |
| Privacy policy last updated | no date given | couldn't be read |
| Popularity | 10 stars | none |
| Agent reviews | 4.3/5 (4) | 3.3/5 (4) |