Head to head
Groq vs xAI Grok API
As a llm API, xAI Grok API rates higher on the APIbenchmarks Index, 77.9 to 77.8, a 0.1-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Groq | xAI Grok API |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 77.8 | 77.9 |
Specifications
| Groq | xAI Grok API | |
|---|---|---|
| Best for | Ultra-low-latency open-model inference | Frontier models, X-integrated |
| Free tier | Free dev tier, no card: 30 RPM / 6K TPM / 14,400 req/day | No |
| Pricing | Per token | Per token |
| Official SDKs | 8 languages | 7 languages |
Is Groq better than xAI Grok API?
On the APIbenchmarks Index, xAI Grok API rates higher (77.9 vs 77.8). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
xAI Grok API leads by 0.1 points (77.9 vs 77.8) and wins 3 of 4 criteria; Groq wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 78 | 80 | |
| Reliability | 72 | 76 | |
| Ecosystem & SDKs | 72 | 74 | |
| Accessibility | 92 | 82 |
Choose Groq if… / choose xAI Grok API if…
- →accessibility matters most to you (92 vs 82)
- →you want a free tier to start (Free dev tier, no card: 30 RPM / 6K TPM / 14,400 req/day)
- →you need broad SDK coverage (8 official SDKs vs 7)
- →your use case matches its focus: ultra-low-latency open-model inference
- →documentation & dx matters most to you (80 vs 78)
- →reliability matters most to you (76 vs 72)
- →ecosystem & sdks matters most to you (74 vs 72)
- →your use case matches its focus: frontier models, x-integrated
Pricing side by side
- Model
- Per token
- Free tier
- Free dev tier, no card: 30 RPM / 6K TPM / 14,400 req/day
- Free (GroqCloud)$0
- Developer / Pay-as-you-go (On-Demand)Per-token, usage-based
- Batch API50% off standard per-token pricing
- EnterpriseCustom (contact sales)
- Model
- Per token
- Free tier
- No
- grok-4.3 (flagship)$1.25 / $2.50 per 1M
- grok-4.20 reasoning / non-reasoning$1.25 / $2.50 per 1M
- grok-build-0.1 (coding agent)$1.00 / $2.00 per 1M
- Grok 4 (legacy / launch)$3.00 / $15.00 per 1M
- Grok Imagine API$0.02–$0.05 / image, $0.05–$0.08 / sec video
- Grok Voice API$0.05/min realtime; $15/1M chars TTS; ~$0.10/hr STT
Vendor-published pricing, verified 2026-06-27 (Groq) and 2026-06-27 (xAI Grok API).
SDK and language coverage
Both · 1
Python (groq)
Only Groq · 7
TypeScript / Node.js (groq-sdk)OpenAI SDK (drop-in via base URL)LangChainVercel AI SDKLiteLLMOpenRouter (third-party routing)REST / HTTP API
Only xAI Grok API · 6
JavaScript / TypeScript (OpenAI SDK compatible)Anthropic SDK compatibleREST / cURLAvailable via OpenRouterAvailable on Microsoft Azure AI FoundryLangChain integration
Strengths and weaknesses
- +Top-ranked output speed on shared models (~322 t/s on Llama 3.3 70B per Artificial Analysis), far above typical GPU providers
- +Very low time-to-first-token (sub-1s), ideal for real-time agents and voice pipelines
- +OpenAI-compatible API, migrate with a one-line base-URL change, reuse existing OpenAI SDK code
- –Open-weight models only, no Claude, GPT-4-class, or Gemini
- –Persistent rate-limit and over-capacity (429) complaints; free tier is tight (~30 RPM)
- –Rate limits are pooled per-organization, not per-key, so adding keys does not raise capacity
- +Built-in Live Search and real-time access to X/Twitter data that competing LLM APIs cannot match
- +Large 1M-token context window on the Grok 4.x models
- +OpenAI- and Anthropic-SDK compatible, so migration is mostly a base-URL/key swap
- –Model and pricing catalog churns fast, models get renamed, retired, or moved to legacy, breaking durable integrations
- –High time-to-first-token (~14–18s) on reasoning variants and only moderate output speed
- –Developers report unclear/confusing rate limits and occasional sluggish performance
Groq vs xAI Grok API: questions
- Which has better documentation, Groq or xAI Grok API?
- xAI Grok API scores higher on documentation and developer experience: 80 vs 78 out of 100.
- Which is more reliable, Groq or xAI Grok API?
- xAI Grok API scores higher on reliability: 76 vs 72 out of 100.
- Do Groq and xAI Grok API have a free tier?
- Groq: yes (Free dev tier, no card: 30 RPM / 6K TPM / 14,400 req/day). xAI Grok API: no free tier.
- How are Groq and xAI Grok API priced?
- Groq: Per token. xAI Grok API: Per token.
- Which has more official SDKs?
- Groq lists 8 official SDKs, xAI Grok API lists 7.