Free AI API Credits 2026: Every Provider Compared (20+ Platforms)
Compare free AI API credits from OpenAI, Anthropic, Google, xAI, Mistral, and 15+ more providers. Exact credit amounts, expiry dates, and rate limits for every platform.
The Complete Free AI API Landscape in 2026
Every major AI provider offers free credits or free-tier access in 2026. The challenge isn't finding free credits — it's knowing which providers offer the most value for your specific use case.
This guide covers 20+ providers with exact credit amounts, rate limits, expiry dates, and the best use case for each.
Quick summary: New developers can collect $300+ in free credits across all providers combined, plus unlimited rate-limited access to 5+ platforms. For startup-level credits ($10K-$150K+), check the credit programs section at the bottom.
Master Comparison Table
| Provider | Sign-Up Credits | Free Tier Type | Credit Card | Best For | Expiry |
|---|---|---|---|---|---|
| xAI (Grok) | $25 + $150/mo | Credits + data program | No | Maximum free budget | Monthly |
| Together AI | Up to $100 | Trial credits | No | Open-source models | 3 months |
| Google Gemini | Unlimited | Rate-limited | No | Prototyping | None |
| Mistral | Unlimited | Rate-limited | No | Code + EU hosting | None |
| Groq | Unlimited | Rate-limited | No | Ultra-fast inference | None |
| DeepSeek | Unlimited | Rate-limited | No | Cheap reasoning | None |
| Cerebras | Unlimited | Rate-limited | No | Fastest generation | None |
| AI21 | $10 | Trial credits | No | Jamba models | 3 months |
| OpenAI | $5 | Trial credits | No | GPT-4o, GPT-5, o3 | 3 months |
| Anthropic | $5 | Trial credits | No | Claude Opus, Sonnet | None |
| Cohere | Free trial | Rate-limited | No | Embeddings, RAG | None |
| Fireworks AI | $1 | Trial credits | No | Fast inference | None |
| Stability AI | Free tier | Rate-limited | No | Image generation | None |
| fal.ai | Free credits | Trial credits | No | Image + video AI | Varies |
| OpenRouter | Free models | Rate-limited | No | Model aggregation | None |
| Hugging Face | Free tier | Rate-limited | No | Open model hosting | None |
| Replicate | Free credits | Trial credits | No | Model deployment | Varies |
| Perplexity | Free tier | Rate-limited | No | Search + AI | None |
| Cloudflare AI | 10K neurons/day | Rate-limited | No | Edge AI inference | Daily reset |
| Vercel AI SDK | Free tier | Rate-limited | No | AI app framework | None |
OpenAI credits | Anthropic credits | Google Cloud credits | Mistral credits | AWS credits | Vercel credits
Tier 1: The Most Generous Free Credits
xAI Grok — $175/Month Free
The most generous dollar-amount free tier in 2026. xAI offers $25 in sign-up credits plus $150/month through their opt-in data-sharing program.
| Model | Cost (per 1M tokens) | Monthly free budget gets you |
|---|---|---|
| Grok-3 Mini | $0.30 / $0.50 | ~350M output tokens |
| Grok-3 | $3.00 / $15.00 | ~11.7M output tokens |
Why it stands out: At $175/month free, xAI gives you more sustained development budget than any other provider. Grok-3 Mini at $0.30/$0.50 is one of the cheapest frontier models available.
Trade-off: The $150/month requires opting into data sharing, where xAI uses your API interactions to improve models. Fine for development, not ideal for sensitive production data.
Together AI — Up to $100 in Sign-Up Credits
One of the largest one-time credit amounts. Together AI gives access to 200+ open-source models including Llama 4, DeepSeek-V3, Qwen, and Mixtral.
| Model | Cost (per 1M tokens) | $100 gets you |
|---|---|---|
| Mistral Small 3 | $0.10 / $0.30 | ~333M output tokens |
| Llama 4 Maverick | $0.27 / $0.85 | ~118M output tokens |
| DeepSeek-V3.1 | $0.60 / $1.70 | ~59M output tokens |
Why it stands out: $100 on Together AI lasts significantly longer than $5 at OpenAI. If you're building with open-source models, this is the best starting point.
Google Gemini — Unlimited Free Access
The most generous access model. Gemini offers unlimited free-tier access to all models with no credit card required. Rate-limited but functional.
| Model | Free Tier Rate Limit |
|---|---|
| Gemini 2.0 Flash | 15 RPM / 1,000 RPD |
| Gemini 2.5 Pro | 5 RPM / 100 RPD |
| Gemini 2.5 Flash | 10 RPM / 500 RPD |
Why it stands out: Zero cost, zero commitment. For prototyping and personal projects, Gemini's free tier is unmatched. The trade-off is strict rate limits that prevent production use.
Tier 2: Solid Free Tiers
OpenAI — $5 Free Credits
New accounts get $5 in trial credits with access to all models including GPT-4o, GPT-4.1, GPT-5, o3, and o4-mini.
| Model | Cost (per 1M tokens) | $5 gets you |
|---|---|---|
| GPT-4.1 Nano | $0.10 / $0.40 | ~12.5M output tokens |
| GPT-4o | $2.50 / $10.00 | ~500K output tokens |
| GPT-5 | $10.00 / $30.00 | ~167K output tokens |
Limitation: $5 runs out in 1-3 days of heavy testing. Credits expire after 3 months.
Anthropic Claude — $5 Free Credits
Approximately $5 in credits after phone verification. Works across all Claude models.
| Model | Cost (per 1M tokens) | $5 gets you |
|---|---|---|
| Haiku 4.5 | $0.80 / $4.00 | ~1.25M output tokens |
| Sonnet 4.5 | $3.00 / $15.00 | ~333K output tokens |
| Opus 4.6 | $15.00 / $75.00 | ~67K output tokens |
Pro tip: Use Haiku for maximum coverage on free credits. For more Anthropic credits, check our comprehensive Anthropic credits guide.
Mistral — Unlimited Free Plan
Mistral's Experiment plan gives unlimited access to all models — including Mistral Large, Codestral, and Pixtral — with no credit card required.
Rate limits: 2 RPM, 500K tokens/min, 1B tokens/month. Generous enough for development across all models.
Unique advantage: Codestral is a dedicated coding model available on the free plan. EU data residency option for European developers.
Tier 3: Specialized Free Tiers
Groq — Ultra-Fast Free Inference
Rate-limited free access with inference speeds of 1,000+ tokens/second via their custom LPU chips.
Free limits: ~1,000 requests/day across Llama, Mixtral, and Gemma models. Best for developers who need fast inference for prototyping.
DeepSeek — Cheap Reasoning Models
Rate-limited free tier for DeepSeek-V3 and R1 (reasoning model). DeepSeek R1 is the most cost-effective reasoning model available at scale.
Cerebras — Fastest Token Generation
Rate-limited free tier generating at 2,600+ tokens/second. The fastest inference available for open-source models.
Cohere — Best Free Embeddings
Free trial key with 1,000 calls/month. The best free option for building RAG pipelines and vector search. Includes embedding models, reranking, and generation.
Stability AI / fal.ai — Image & Video
Stability AI offers free-tier access to SDXL and SD3 image generation. fal.ai provides free credits for both image and video generation.
Cloudflare Workers AI — Edge Inference
10,000 neurons/day free for running AI models at the edge. Great for low-latency inference in serverless applications.
Decision Matrix: Which Free API Should You Choose?
| Your Use Case | Best Free Provider | Why |
|---|---|---|
| General chatbot | Google Gemini | Unlimited free, frontier quality |
| Coding assistant | Mistral (Codestral) | Free coding-specific model |
| Maximum free budget | xAI Grok | $175/month free |
| Open-source models | Together AI | $100 sign-up, 200+ models |
| Fastest inference | Groq or Cerebras | 1,000-2,600 tok/sec |
| Image generation | Stability AI or fal.ai | Free tier for SDXL, Flux |
| Embeddings / RAG | Cohere | Free embedding models |
| Advanced reasoning | DeepSeek R1 | Free rate-limited reasoning |
| Production validation | OpenAI or Anthropic | $5 trial covers testing |
| Edge / serverless | Cloudflare Workers AI | 10K neurons/day free |
Pro tip: Don't choose just one. Sign up for all of them. Use Gemini for prototyping, xAI for heavy testing, Mistral for coding, and OpenAI or Anthropic for production validation. Combined: $300+ in credits and unlimited rate-limited access across every major model.
Beyond Free Tiers: Getting $10,000 to $150,000+
Free sign-up credits cover hours of testing, not months of building. At typical development usage (500 API calls/day), $5 in credits lasts 1-3 days.
For real projects, you need startup-level credits:
| Credit Source | Available Credits |
|---|---|
| AWS Activate (Bedrock: Claude, Titan) | $1,000 – $100,000 |
| Google Cloud Startups (Vertex AI: Claude, Gemini) | $2,000 – $100,000 |
| Microsoft Founders Hub (Azure: OpenAI, Claude) | $1,000 – $5,000 |
| Anthropic Startup Program | $1,000 – $25,000 |
| Together AI Startup Program | $15,000 – $50,000 |
| OpenAI Startup Credits | $500 – $50,000 |
Total potential: $20,500 to $330,000+ across all programs.
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Monthly Cost Estimates by Model
How long will your credits last at typical development usage (500 calls/day)?
| Model | ~Monthly Cost | $100 lasts | $1,000 lasts |
|---|---|---|---|
| GPT-4.1 Nano | $5 – $10 | 10-20 months | 8+ years |
| Gemini 2.0 Flash | $3 – $8 | 12-33 months | 10+ years |
| Claude Haiku 4.5 | $10 – $25 | 4-10 months | 3-8 years |
| Grok-3 Mini | $8 – $15 | 7-12 months | 5+ years |
| GPT-4o | $50 – $150 | 3-8 weeks | 7-20 months |
| Claude Sonnet 4.5 | $50 – $150 | 3-8 weeks | 7-20 months |
| GPT-5 | $150 – $400 | 1-3 weeks | 2.5-7 months |
| Claude Opus 4.6 | $200 – $500 | 1-2 weeks | 2-5 months |
Frequently Asked Questions
xAI Grok offers the most dollar-amount free credits at $25 sign-up plus $150/month through their data-sharing program ($175 total in month one). Google Gemini offers the most generous access model with unlimited free-tier requests across all models. Together AI offers up to $100 in sign-up credits.
No. Most major providers — including OpenAI, Anthropic, Google Gemini, xAI, Mistral, Together AI, and Groq — offer free tiers without requiring a credit card. You typically need only an email address and phone number.
It varies by provider. OpenAI credits expire after 3 months. xAI gives $150/month ongoing. Google Gemini and Mistral offer unlimited rate-limited access with no expiration. Together AI and AI21 credits typically expire within 3 months.
Yes. There are no restrictions on signing up for free tiers across multiple providers simultaneously. You can collect $200+ in combined credits across all providers.
Free sign-up tiers max out at ~$200 combined. For $10,000 to $150,000+, apply to startup credit programs offered by each provider. ClaimAICredits provides step-by-step guides to every available program across all major AI providers.
DeepSeek V3 ($0.27/$1.10 per million tokens) and Google Gemini Flash ($0.075/$0.30) offer the lowest per-token pricing for production workloads. For free access, Groq and Cerebras offer rate-limited free tiers with very fast inference.
Mistral Codestral (free on Experiment plan) is purpose-built for code. Claude Sonnet and GPT-4.1 also excel at coding tasks but have limited free credits ($5 each). For unlimited free coding help, Google Gemini's free tier handles code generation well.
Yes. Stability AI offers free-tier access to SDXL and SD3 models. fal.ai provides free credits for image and video generation. These are rate-limited but fully functional for prototyping.
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