Compare 33 free alternatives to Keywords AI for AI / ML. Every one of their free tier limits side by side, with the read and catalogue dates we hold.

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Best Keywords AI Alternatives with Free Tiers (2026)

33 free alternatives in AI / ML. Sorted by pricing stability.

Current Keywords AI Situation

Risk Level: source unconfirmed
Why: We could not read the page we cite for Keywords AI when we last looked, on 2026-10-31. We are not publishing a stability judgement for it until that is fixed.
Category: AI / ML
Pricing Page: www.respan.ai/pricing

Recent Pricing Changes (1)

rebranded discovered 2026-04-13 · effective date unknown low impact
Rebranded to Respan, free tier preserved We hold no source for this record, so it does not set Keywords AI's rating.

All Free Alternatives (33)

17 of these carry no recorded demerit and are indistinguishable under every signal we hold; their order rotates daily. 7 are demoted with the reason named, and 9 are listed last because they are not generally available or are not a free offer. How we rank.

Left out of this list: Brave Search API (shares no subtype with this product), Pinecone (shares no subtype with this product), Qdrant (shares no subtype with this product), Deepgram (shares no subtype with this product), Kaggle (shares no subtype with this product), Roboflow (shares no subtype with this product), Scale AI (shares no subtype with this product), AssemblyAI (shares no subtype with this product), Replicate (shares no subtype with this product), Weights & Biases (shares no subtype with this product), Clarifai (we have not classified this record), Neptune.ai (we have not classified this record), Labelbox (shares no subtype with this product), Google Colab (shares no subtype with this product), Composio (shares no subtype with this product), DeepAR (none of this category's subtypes apply), OCR.Space (shares no subtype with this product), Parseur (shares no subtype with this product), Reducto (shares no subtype with this product), SerpApi (shares no subtype with this product), Tavily AI (shares no subtype with this product), paperspace (shares no subtype with this product), Audio Enhancer (none of this category's subtypes apply), Clair (none of this category's subtypes apply), Langtrace (we have not classified this record), Mediaworkbench.ai (none of this category's subtypes apply), Othor AI (none of this category's subtypes apply), ReportGPT (none of this category's subtypes apply), Zenable (none of this category's subtypes apply), Exa (shares no subtype with this product), GPU-Bridge (we have not classified this record), Google Vertex AI Agent Engine (we have not classified this record), Google Vector Search 2.0 (shares no subtype with this product), Google Gemini Embedding 2 (shares no subtype with this product), Alibaba Cloud Qwen Code (none of this category's subtypes apply), E2B (shares no subtype with this product), Modal (shares no subtype with this product), ElevenLabs (we have not classified this record), Stability AI (we have not classified this record), Daytona (shares no subtype with this product), Blaxel (shares no subtype with this product), Novita Sandbox (shares no subtype with this product), Runloop (shares no subtype with this product), Mem0 (shares no subtype with this product), Zep (shares no subtype with this product), Letta (we have not classified this record), Supermemory (shares no subtype with this product), Cognee (shares no subtype with this product), Serper (shares no subtype with this product), Linkup (shares no subtype with this product), Parallel (shares no subtype with this product), Jina AI (shares no subtype with this product), You.com (shares no subtype with this product), Cloudflare AI Search (we have not classified this record), Valyu (shares no subtype with this product). Each is still listed in its category, with the vendor's own words we read that from on its page. How we decide this.

Hetzner Inference API stable
Free
Hetzner's experimental Inference API: an OpenAI-compatible API for open-weight models, free while it stays experimental. Base URL: https://inference.hetzner.com/api/v1.
AI / ML Read and confirmed 2026-10-31
Profile
Comet ML stable
Free
Comet makes Opik, for LLM and agent observability and evaluation, and an MLOps platform for ML experiment tracking. Opik is open source and free to self-host.
AI / ML Read and confirmed 2026-11-06
Profile
Lumenfall.ai stable
Free
AI media gateway: one OpenAI-compatible API to image and video generation models from several providers, billed at each provider's price with no markup, platform fee or subscription. One model, FLUX.1 [schnell] FP8, is listed free per image ("Free to try", served through Fireworks AI).
AI / ML Read 2026-11-12 · confirmed 2026-10-21
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Arize AX
Free
Platform for agent observability, evaluation and improvement. AX Free costs $0 with no credit card required: 25k trace spans per month, 1 GB ingestion per month, 15 days of retention, unlimited users and evals, 10 Signal issues per month, the Alyx agent and community support.
AI / ML Read 2026-11-08 · confirmed 2026-10-16
Profile
Cohere stable
Free
AI model API for Command chat models, Embed, Rerank, Transcribe and Parse. Every account starts with a Trial API key: calls made with it are free and limited to 1,000 API calls a month.
AI / ML Read 2026-10-26 · catalogue date 2026-08-16
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Groq caution 2026-10-06 reduced
Free
Fast LLM inference on Groq's LPU hardware. Free plan: gpt-oss-20b, gpt-oss-120b and Qwen3.8 27B, each at 30 requests a minute, 1,000 requests and 200,000 tokens a day, plus Whisper speech-to-text at 2,000 requests a day.
AI / ML Read 2026-10-26 · confirmed 2026-10-03
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LangSmith
Free
LLM observability and evaluation platform by LangChain — Developer plan is $0/seat/month with up to 5k base traces/month, then pay-as-you-go. LCU is $1.50/unit and LSU is $1.00/unit.
AI / ML Read and confirmed 2026-10-30
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Pollinations.AI caution 2026-07-10 reduced
Free
Keyless Classic API: one image model and GPT-OSS 20B text, free, no sign-up, rate-limited per IP. Every other model needs an API key and Pollen, and free Pollen comes only from quests.
AI / ML Read and confirmed 2026-10-31
Profile
Maxim AI stable
Free
Simulate, evaluate, and observe your AI agents — The 'OSS' tier is free forever for developers, small teams, and self-managed deployments. It includes features like a drop-in replacement, OTel compatibility, metrics & traces, built-in observability, budget management, and more.
AI / ML Read and confirmed 2026-10-29
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Cloudflare Workers AI caution 2026-07-28 reduced
Free
Workers AI runs AI models on Cloudflare's global network. Every account gets 10,000 Neurons per day at no charge, reset daily at 00:00 UTC; on the Workers Free plan, requests beyond that fail until the reset.
AI / ML Read 2026-10-31 · confirmed 2026-10-06
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Braintrust stable
Free
Evals, prompt playground, and data management for Gen AI. Starter plan (free): 1 GB processed data/month, 10k scores/month, 14 days data retention.
AI / ML Read and confirmed 2026-11-06
Profile
Hugging Face caution 2026-10-07 reduced
Free
ML model hub. Since 2026-10-07, free accounts get no included Inference Providers credits: free users buy credits or upgrade to PRO to call Inference Providers, which serves 200+ models.
AI / ML Read 2026-10-30 · confirmed 2026-10-05
Profile
LLM7.io caution discovered 2026-10-07 reduced
Free
LLM inference gateway. With a free token from dash.llm7.io: 1 request a second, 60 a minute, 250 an hour and 100,000 tokens per 24 hours, counting input and output tokens; LLM7 says free quotas may be reduced without notice.
AI / ML Read and confirmed 2026-10-31
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NVIDIA NIM stable
Free
Free inference endpoints on build.nvidia.com: models marked Free Endpoint, including DeepSeek V4.1 Flash, GLM 5.3 Flash, gpt-oss-20b, Gemma 4 31B and NVIDIA Nemotron 3 Ultra, can be called at no cost. Their model IDs are deepseek-ai/deepseek-v4.1-flash, z-ai/glm-5.3-flash, openai/gpt-oss-20b,…
AI / ML Read and confirmed 2026-11-02
Profile
OpenRouter stable
Free
AI model router. Free plan: 50 requests a day, no BYOK.
AI / ML Read and confirmed 2026-11-06
Profile
Google Gemini API stable
Free (Reduced)
Free tier: Gemini 4 Hydrogen, Gemini 3.8 Flash, 3.6 Flash, 3.5 Flash-Lite, 3.1 Flash-Lite, Gemini 3 Flash Preview, Gemini Embedding 2 and Gemma 4 are free of charge. Also free of charge are Gemini 3.8 Live (real-time voice), Gemini 3.5 Live Translate (translation), Gemini 3.5 Transcribe…
AI / ML Read and confirmed 2026-11-09
Profile
Langfuse stable
Free
Open-source LLM engineering platform for tracing, evaluating and debugging AI applications. The Langfuse Cloud Hobby plan is free with no credit card: 50k units a month (each trace, observation and score counts as one unit), 30 days of data access, 2 users, community support via GitHub, and all…
AI / ML Read and confirmed 2026-11-13
Profile
Portkey
Free
Control panel for Gen AI apps featuring an observability suite & an AI gateway. Send & log up to 10,000 requests for free every month.
AI / ML Read 2026-10-24 · catalogue date 2026-08-12
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-24, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor.
Zhipu AI
Free
China-based GLM model API. The price list marks these models free: GLM-4.7-Flash, GLM-4-Flash-250414 and GLM-Z1-Flash (text); GLM-4.6V-Flash, GLM-4V-Flash and GLM-4.1V-Thinking-Flash (vision); CogView-3-Flash (image); CogVideoX-Flash (video).
AI / ML Read 2026-10-30 · catalogue date 2026-08-20
Profile
−1 stale_verification We cannot confirm this offer: 2 consecutive re-check attempts have failed (most recently 2026-10-30 — the page never names Zhipu AI and is not served from its domain), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor.
LangWatch
Free
A LLMOps platform helping AI teams measure, monitor, and optimize LLM applications for reliability, cost-efficiency, and performance. With a powerful DSPy component, we enable seamless collaboration between engineers and non-technical teams to fine-tune and productionize GenAI products.
AI / ML Read 2026-10-24 · catalogue date 2026-08-10
Profile
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-24, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor.
SiliconFlow
Free
Pay-as-you-go model inference. siliconflow.cn, run by a Beijing company, lists these models at no charge: the chat models Qwen3-8B, Qwen2.5-7B-Instruct (Free), Qwen3.5-4B, GLM-4-9B-0414, GLM-Z1-9B-0414, DeepSeek-R1-0528-Qwen3-8B (Free) and Xing4.0-29B; the translation model Hunyuan-MT-7B; the OCR…
AI / ML Read 2026-11-02 · catalogue date 2026-08-20
Profile
−1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-11-02 — Could not parse AI response), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor.
Fireworks AI
Free Credits
Inference platform for open models, with serverless per-token pricing and on-demand GPU deployments billed per GPU second. Fireworks offers $1 in free credits to get started.
AI / ML Read 2026-10-28 · catalogue date 2026-08-25
Profile
−2 time_limited_offer Tier "Free Credits" is a credit grant that runs out, not an ongoing free tier.
Baseten
Basic (Free Credits)
ML model deployment platform. New workspaces receive credits for testing and deployment; Baseten does not state the amount.
AI / ML Read 2026-10-29 · catalogue date 2026-08-01
Profile
−2 time_limited_offer Tier "Basic (Free Credits)" is a credit grant that runs out, not an ongoing free tier.
−1 stale_verification Our last read of the vendor's pricing page, on 2026-10-29, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor.
Cerebras risky 2026-07-16 removed
Trial
Ultra-fast LLM inference API — no permanent free tier. New accounts get $5 in free credits after adding a verified payment method, expiring 30 days after they are granted.
AI / ML Read 2026-10-26 · confirmed 2026-10-03
Profile
−3 free_tier_withdrawn Recorded free tier removal on 2026-07-16: Cerebras's free access became a time- and credit-bounded trial for new accounts: $5 in credits after adding a verified payment method, expiring 30 days after they are granted. Cerebras says there is no permanently free tier; continued use needs a Pay as You Go purchase. Source: https://inference-docs.cerebras.ai/support/change-log
−2 time_limited_offer Tier "Trial" is a trial that expires, not an ongoing free tier.
Mistral AI
Pay-as-you-go
Since about 2026-11-05, Mistral's Free plan covers Vibe and Studio and does not include API access. Creating API keys and calling the API require billing activation and pay-as-you-go with prepaid credits.
AI / ML Read 2026-11-02 · catalogue date 2026-10-01
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
OpenAI
Pay-as-you-go
AI API platform. One model is priced Free in OpenAI's own table: the moderation model omni-moderation-latest.
AI / ML Read 2026-11-11 · catalogue date 2026-09-10
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
MiniMax
Pay-as-you-go
MiniMax sells API access pay-as-you-go on platform.minimax.io. Its pricing pages list no free API allowance; one docs page mentions a free quota for new pay-as-you-go users but gives no amount.
AI / ML Read 2026-11-02 · catalogue date 2026-07-09
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
Ollama Cloud
Pay-as-you-go
Cloud-hosted Ollama for running open-source LLMs. Between October 26 and 27, 2026, Ollama replaced its Free plan, which included starter usage credits, with a $0 Pay as you go plan.
AI / ML Read and confirmed 2026-11-02
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
xAI
Pay-as-you-go
Grok API, pay as you go: sign up at console.x.ai, then load it with credits. grok-4.7 $2.00/$6.00 (per 1M tokens, under 200k prompt tokens).
AI / ML Read 2026-11-02 · catalogue date 2026-08-14
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
DeepSeek API
Pay-as-you-go
Pay-as-you-go LLM API with no free tier, billed from a prepaid balance. DeepSeek-V4.1-Flash (deepseek-flash): $0.30/M input, $1.20/M output at peak.
AI / ML Read 2026-11-02 · catalogue date 2026-08-18
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
GitHub Models
Retired
GitHub retired GitHub Models on 2026-07-30, so there is no free tier. GitHub's own documentation states "GitHub Models has been retired."
AI / ML Read 2026-11-02 · catalogue date 2026-08-20
Profile
offer_retired GitHub Models's offer is recorded as Retired.
Together AI
Pay-as-you-go
Inference API for open-source models, billed per token. Together AI does not currently offer free trials; access requires a minimum $15 credit purchase for an organization's first purchase ($5 for later purchases), and the platform is fully prepaid.
AI / ML Read and confirmed 2026-10-26
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
Anthropic API
Pay-as-you-go
Claude API with usage-based pricing per million tokens (input/output). Claude Fable 5.2 $8/$40.
AI / ML Read 2026-11-11 · catalogue date 2026-08-15
Profile
not_a_free_offer Tier "Pay-as-you-go" is usage-billed from the first request.
Recompute today's order yourself. The order above is a permutation seeded only on the UTC date and the query key — no vendor name, slug, id or offer field is an input. The algorithm is published, so anyone can reproduce this page's order without asking us.
date
2026-11-14
query_key
alternative-to:Keywords AI
seed
20acc717ed3be55ba619402747eda273e791e8a6a8df859e2c5400ceeb2bca69
tie_count
17

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Frequently Asked Questions

What are the best free alternatives to Keywords AI?
We publish no ranking of these. Nothing we record measures popularity or generosity, so naming a best or a top few would be our preference rather than our data. We hold 33 free alternatives to Keywords AI, each listed below with its tier, category and the read and catalogue dates we hold. Of those, 17 carry no recorded demerit and are indistinguishable under every signal we hold, so they are listed in an order that rotates daily, 7 are demoted with the reason named, 9 are listed last behind a stated gate. Our ranking rule is published at /criteria.
Is Keywords AI's free tier still available?
We cannot confirm that today. We could not read the page we cite for Keywords AI when we last looked, on 2026-10-31. Our stored record says Keywords AI offers a free tier (Free), but we have not confirmed those terms against the source we cite.
How many free alternatives to Keywords AI exist?
There are 33 free alternatives to Keywords AI tracked on AgentDeals across the AI / ML category.
Has Keywords AI changed their pricing?
Keywords AI has 1 recorded pricing change. The most recent was discovered 2026-04-13: Rebranded to Respan, free tier preserved We hold no source for this record, so it does not set Keywords AI's rating.