Cerebras Inference vs Portkey vs Fireworks AI
Side by side, from each listing’s own data. A row where every column says the same is shown once, dimmed.
 Cerebras Inferenceby CerebrasRemove Cerebras Inference from this comparison |  Portkeyby PortkeyRemove Portkey from this comparison |  Fireworks AIby Fireworks AIRemove Fireworks AI from this comparison | |
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| Sets it apart |
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| What it is | Serves open-weight LLMs such as Qwen and GPT OSS through an OpenAI-compatible API on wafer-scale hardware, for developers who need very fast inference. | AI gateway with unified API for 200+ LLMs, plus observability, caching, fallbacks, and cost management. Drop-in replacement for the OpenAI SDK. | Production inference platform for open models with fast function calling, structured output, and fine-tuning behind an OpenAI-compatible API. |
| Provider | Cerebras | Portkey | Fireworks AI |
| Official vendor | Cerebras | Not an official listing | Fireworks AI |
| Verified | YesSame for all | ||
| Access | APISame for all | ||
| Auth | API KeySame for all | ||
| API base URL | https://api.cerebras.ai/v1 | In its docs | https://api.fireworks.ai/inference/v1 |
| Skills | Tool Calling, Structured Outputs, Batch Inference, Prompt Caching | Route requests across 200+ LLMs with a single unified OpenAI-compatible API, Fail over to backup models automatically when primary providers return errors, Cache identical prompts semantically to cut costs and reduce latency, Track per-model costs, latency, and error rates in a real-time analytics dashboard, Manage prompts centrally with version control and per-environment overrides | None listed |
| Streaming | YesSame for all | ||
| Push notifications | NoSame for all | ||
| Categories | Language & Translation, Infrastructure & Ops | Infrastructure & Ops | Language & Translation, Infrastructure & Ops |
| Tags | fast-inference, openai-compatible, wafer-scale, llm-api, open-weight-models, structured-outputs, batch-inference | ai-gateway, observability, llm-routing, cost-management, openai-compatible, caching | inference, function-calling, structured-output, open-models |
| Listed since | Oct 31, 2026 | Apr 8, 2026 | Aug 11, 2026 |
| Use it now | |||
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