XAI API plans free tier pricing

OCI Generative AI (now positioned as OCI Enterprise AI) is Oracle's managed service for pretrained and custom models, agents and governance on Oracle Cloud Infrastructure, with chat, embeddings, rerank, OpenAI-compatible APIs and an OCI Responses API. Oracle bills it through the public OCI price list, where rates are itemised per model: xAI Grok and Google Gemini entries are priced per 1,000,000 tokens (with cached-input and >200K-context variants), Cohere and Meta Llama endpoints per 10,000 transactions, and private replicas or fine-tuned models on Dedicated AI units per hour. New accounts get a US$300 cloud credit valid for 30 days plus ongoing Always Free services, but Generative AI is not among the AI services Oracle lists as having a free pricing tier.

Oracle Cloud Free Tier gives a US$300 cloud credit to spend within 30 days on all OCI services in addition to Always Free services, switching to pay-as-you-go or Always Free only afterwards (oracle.com/cloud/free/); OCI Generative AI itself is not listed among Oracle AI services with a free pricing tier.

Amazon Bedrock is AWS's model-API layer: 18 provider brands (Anthropic, OpenAI, Meta, Mistral, DeepSeek, Google, NVIDIA, xAI, Qwen, Amazon Nova and more) behind one AWS account, priced per 1M tokens with a 50% batch discount, tiered cross-region pricing and reserved/provisioned capacity. Bedrock itself has no standing free tier — new AWS accounts get $100 in credits at sign-up plus up to $100 more over a 6-month free plan.

New AWS accounts: $100 credits at sign-up + up to $100 earned over the 6-month free plan (aws.amazon.com/free, verified 2026-09-16). Bedrock itself has no standing free tier.

Grok X Search (xAI): x_search tool enabling Grok models to run keyword/semantic search, user search, and thread fetch over real-time X (Twitter) data; usable via xAI SDK, OpenAI-compatible Responses API, or Vercel AI SDK. Billed at $5 per 1,000 tool calls (changes Sep 21, 2026 to $5/1k posts + $10/1k profiles fetched); new xAI API accounts get $25 promotional credits; no free tier specific to X Search.

New console.x.ai accounts receive $25 promotional API credits usable against model + X Search usage (one-time).

xAI (founded by Elon Musk) offers the official API for the Grok series of LLMs. Known for leading benchmarks in coding and reasoning, the Grok-4.6 flagship model is available via an OpenAI-compatible API, featuring low-latency inference and high agentic tool-calling capabilities.

No permanent free tier; ~$25 promo credit on signup (30-day expiry, varies by region/promotion). $150/mo data-sharing credits still listed by 2026 guides despite mid-2025 end reports — rely on what the console shows.

Helyx markets itself as a unified OpenAI-compatible API gateway for frontier models (Claude Opus 5, Claude Haiku 4.5, GPT-5.4 Nano, Gemini, Kimi, DeepSeek) claiming 50+ models behind one endpoint, with a published rate card of five active models including DeepSeek-V4 Pro at $0.400 in / $0.750 out per 1M tokens (50% off its $0.800/$1.50 list) and MiniMax M3 at $0.300/$1.200. Signup is Google or GitHub with no password, and the account is credited with $10.000000 free: $2.000000 instantly plus $8.000000 released on request. Paid top-ups are crypto-only (USDT, USDC, BTC, ETH, TRON) and every deposit is doubled ($5 pays $10 credit, $25 pays $50), with credits stated to never expire and no subscriptions or daily caps. The domain in this listing, helyx.ai, is dead - it returns a 404 DEPLOYMENT_NOT_FOUND from Vercel - and the live Helyx AI site is served from helyxai.space.

$10.000000 signup credit ($2.000000 instant, $8.000000 released on request) as stated on the helyxai.space homepage and pricing page; the $10 figure is the operator's own published grant, not a conversion.

Api.airforce is a unified AI model aggregator reselling access to 100+ models from Anthropic, OpenAI, and xAI. It offers a large selection of free models (including Grok-3 and Claude 3.7) alongside paid subscription tiers for higher throughput.

55 free tier models including Grok-3, Claude 3.7, Qwen3, Kimi-K2, Gemini 2.5 Flash, DeepSeek-V3

Open-source Go proxy server (MIT license, router-for-me/CLIProxyAPI) that wraps CLI subscriptions - Google Antigravity/Gemini, OpenAI ChatGPT Codex (GPT series), Anthropic Claude Code, xAI Grok Build, Moonshot Kimi - and exposes them as OpenAI (incl. Responses), Gemini (incl. Interactions), Claude, Codex and Grok compatible API endpoints. OAuth login flows, multi-account round-robin load balancing, streaming/non-streaming/WebSocket, function calling, multimodal input, Management API, and an embeddable Go SDK. Self-hosted; users bring their own upstream accounts/keys. Desktop wrapper: EasyCLIProxyAPI.

Software is free (MIT); access to upstream models depends on user-provided subscriptions/API keys, no credits or prices from the proxy itself.

Grok Build is xAI's terminal coding agent, installed from x.ai/cli and documented at docs.x.ai/build, running on grok-4.6. The official CLI page states the tool is available to try for free and the client is open source, while xAI's developer pricing page meters every request at API token rates: grok-4.6 costs $2.00 per million input tokens, $0.50 per million cached input tokens and $6.00 per million output tokens for prompts under 200k tokens, rising to $4.00 / $1.00 / $12.00 once a request reaches the long-context threshold.

No numeric free allowance is stated - x.ai/cli says only that Grok Build is available to try for free (checked 2026-09-16).

OfoxAI is an enterprise AI gateway aggregating 100+ models from OpenAI, Anthropic, Google, and more. It offers official provider pricing with a 0% platform fee and includes built-in budget controls and audit logs.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

Perplexity's API blends request and token pricing: Search API at $5 per 1,000 requests; Sonar at $1/$1 tokens plus a $5–$12 per-1K request fee that scales with search depth; and the new Agent API serving OpenAI, Anthropic, Google and xAI models at direct provider rates with no markup, plus per-invocation tool pricing (web_search $0.0025). Sonar is sunset after September 27, 2026 — the Agent API is the successor.

No free tier on the API (checked 2026-09-16). Consumer Pro/Max plan credits (35K bonus + 10K monthly) apply to the app, not the API.

xAI's API serves the Grok family — flagship grok-4.6 with 500K context at $2.00/$6.00 per 1M and configurable reasoning — plus Voice (agent/TTS/STT) and Imagine image/video generation, all in an OpenAI-compatible shape. X Search and Web Search are first-party server-side tools; free credits are promotional, not a published standing program.

No standing free-credit program published in xAI's docs (checked 2026-09-16). Promotional credits vary by account/region/campaign — confirm in the console at sign-up.

OAuth access — sign-in with your existing account. Sign in with xAI to use api.x.ai models such as Grok 4.5. This is separate from Grok Build JWT sessions, which use cli-chat-proxy.grok.com and grok-build model aliases. 7 models tracked (via OpenRouter catalog).

A free tier is available; the exact credit value is not quantified.