LatestAPI Guides
Gemini 3 Pro Image Free Tier: No Free API, Limited Gemini App Use
Gemini 3 Pro Image (Nano Banana Pro) has no free API tier, and the $300 Google Cloud trial excludes Gemini API costs. Free use is a limited Gemini app quota.
11 min
Built for real engineering decisions
AI Model & API Guides
Source-linked guidance for AI models, API integration, and developer workflows—turning fast-changing prices, quotas, capabilities, and limits into decisions you can verify.
- Primary sources first
- Reproducible steps and failure boundaries
- Volatile facts carry review dates
- 489 articles
- 6 languages
- 12 topics
- Updated Oct 5, 2026
AI Image Generation
Gemini Image API Free? No Free Tier, but $5 Buys 148 Images
No. As of October 5, 2026, no Gemini image model has free API output. The $5 minimum prepay covers about 148 Nano Banana 2 Lite images at 1K.
11 min
AI Image Generation
Gemini Image Background Change: Prompts, App Steps, PNG Limits
Upload the photo to Gemini, ask it to change only the background, then check the face and edges. Gemini can't make a transparent PNG; use a cutout tool.
13 min
Gemini & Google AI
Why Can't Gemini Generate Images of People? Policy, Age or Quota
Gemini does make images of people. It refuses real people without consent, minors, and sexual or violent scenes; other failures come from age, region or quota.
14 min
AI Image Generation
Nano Banana Pro 4K: Exact Sizes, $0.24 Cost and Watermark Rules
Nano Banana Pro gives true 4K only when you ask for it: a 16:9 image is 5504x3072, costs $0.24 on the Gemini API, and always carries SynthID.
12 min
AI Image Generation
Nano Banana Pro Risk Control: Blocks, Rate Limits and Suspension
A blocked prompt or a 429 error is not an account penalty. Google acts on accounts for policy violations: email, temporary limits, suspension, then closure.
14 min
AI Image Generation
Nano Banana Pro Errors & Troubleshooting Hub: Fix Every Error Code (2026)
Every Nano Banana Pro error has a fix. This hub covers the common error codes from 429 RESOURCE_EXHAUSTED to IMAGE_SAFETY and blockReason OTHER, with a 30-second diagnosis, production-ready retry code, and tier-by-tier rate limit comparisons.
21 min
AI Image Generation
Nano Banana Pro Safety Filters: What You Can and Can't Change
Nano Banana Pro's adjustable safety filters are Off by default. IMAGE_SAFETY, PROHIBITED_CONTENT and OTHER blocks come from checks no setting changes.
14 min
Troubleshooting
Fix OpenClaw context_length_exceeded and Failed Compaction
For a large OpenClaw session, save the task state and try supported manual compaction. If the summary request also exceeds its limit, resume in a fresh session from a short record of completed work. Fresh-session failures require checking fixed overhead and the local model's loaded context.
15 min
Troubleshooting
Fix OpenClaw 429 Rate Limit Errors: Wait, Recover, or Use a Fallback
When OpenClaw reports a 429, pause extra requests and identify whether the rejection came from the model provider or ClawHub. Wait for a temporary limit, repair exhausted quota or access, and check whether the current selection permits fallback. Preserve completed work before continuing.
13 min
Troubleshooting
Gemini API Paid Tier Getting free_tier_requests Limit 0: What to Fix
A paid Gemini project can still return free_tier_requests limit 0 if the running app uses another project's key, billing setup is incomplete, or the requested model has no usable allowance. Match the request to AI Studio's project, billing status, and active model limits before retrying or replacing keys.
12 min
Troubleshooting
Nano Banana Pro RESOURCE_EXHAUSTED: Fix 429 and Resume Image Jobs
For Nano Banana Pro RESOURCE_EXHAUSTED errors, check the actual project, model, and exhausted limit before retrying. Pause zero allowances, daily limits, and billing blocks; retry transient pressure within a time budget and save confirmed images so a restart does not generate them again.
12 min
Claude & Anthropic
Claude API Error 529 Overloaded: Configure Retries and Reduce Pressure
A Claude API 529 signals temporary overload. Count existing retries, honor server wait times, reduce concurrent calls, and stop when the request's retry window expires.
11 min
Claude & Anthropic
Claude API Error 500: Handle Internal Server Errors and Persistent Failures
A returned Claude API 500 api_error calls for bounded retries and request evidence. If it keeps failing, stop the immediate loop, defer safe work, and send a redacted reproduction to the service owner.
11 min
Claude Code
Claude Code 500 vs 529: Resume Safely Without Duplicating Work
A failed Claude Code response can leave completed edits and tool actions behind. Resume the correct conversation, verify what finished, and continue the remaining steps instead of repeating the task.
13 min
Claude Code
Claude Code Hooks vs Skills vs Slash Commands: What to Use and How to Start
A slash command is an invocation interface; a skill packages reusable instructions; a hook runs at a lifecycle event. Custom commands now use the skills system, and /claude-api invokes the bundled Claude API skill.
11 min
Claude & Anthropic
Claude Internal Server Error: Check Status and Retry Safely
Check the service behind your Claude error, count automatic retries, and choose a safe resend or continuation without repeating completed tool actions.
12 min
API Pricing & Plans
Gemini 3 Pro Image API Pricing: $0.067–$0.432 per Image by Tier
As of October 4, 2026, Gemini 3 Pro Image costs $0.134 per 1K or 2K image and $0.24 per 4K image on Google's Standard tier. Batch is half; no free tier.
9 min
Troubleshooting
Nano Banana 2 blockReason OTHER: What It Means and What to Check
Google defines blockReason OTHER as a prompt blocked for unknown reasons. Save the response, test one change at a time, and don't retry it in a loop.
13 min
API Pricing & Plans
Nano Banana Pro Batch API Cost: Cheapest at 1K/2K, Not at 4K
Google's Batch tier bills Nano Banana Pro at $0.067 per 1K/2K image and $0.12 per 4K image as of October 4, 2026. At 4K, a flat $0.09 per call is cheaper.
14 min
API Guides
OpenAI API Auto Recharge Failed: Restore Access and Check the Cause
If OpenAI API auto recharge fails, restore the correct organization's balance, then check the payment attempt, saved settings, and monthly recharge cap. A successful manual top-up restores funds but does not prove automatic recharge is working.
9 min
Troubleshooting
Fix OpenClaw 401 Errors: Invalid Bearer Token and Missing Auth Header
For an OpenClaw 401, first identify who rejected the request. An invalid provider token, a missing outgoing auth header, and a Gateway or device-token mismatch require different fixes. Check the failing agent and session before replacing credentials.
12 min
Troubleshooting
Fix OpenClaw Invalid Beta Flag: Find the Rejected Header and Repair Its Route
Repair an OpenClaw invalid beta flag error by identifying which feature header the selected provider rejected and where it was added. Remove an unsupported optional flag, or repair the required feature's route, then confirm both configuration loading and a completed request.
11 min
Developer Tools & Agents
OpenClaw LLM Setup: Connect Local Models, Cloud Providers, and Fallbacks
Run OpenClaw onboarding on the Gateway host, connect the provider or local server, then select an exact model from its catalog. Verify both a short reply and a harmless tool task. Configured defaults can use fallbacks; a manually pinned chat model remains strict.
15 min