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Questions, answered.

The 75 most-searched AI-API questions we hear, with short answers you can lift into your own docs. Each page links out to the relevant model spec, compare, or pricing page.

Free APIs

4
Is there a free LLM API?
/q/free-llm-api
Is there a free Claude API?
/q/free-claude-api
Is there a free GPT API?
/q/free-gpt-api
Is there an AI API with no credit card required?
/q/free-ai-api-no-credit-card

Cheapest by capability

6
What is the cheapest model for tool calling?
/q/cheapest-tool-calling-model
What is the cheapest vision model?
/q/cheapest-vision-model
What is the cheapest model with JSON mode?
/q/cheapest-json-mode-model
What is the cheapest reasoning model?
/q/cheapest-reasoning-model
What is the cheapest model that supports streaming?
/q/cheapest-streaming-model
What is the cheapest long-context model?
/q/cheapest-long-context-model

By modality

5
What is the best image generation API?
/q/image-generation-api-comparison
What is the best audio transcription API?
/q/audio-transcription-api-comparison
What is the best text-to-speech API?
/q/audio-tts-api-comparison
What is the best video generation API?
/q/video-generation-api-comparison
What is the best embedding API?
/q/embedding-api-comparison

How-to

15
How do I use Claude Fable 5.1?
/q/how-to-use-anthropic-claude-fable-5.1
How do I use Gemini 3.8 Flash?
/q/how-to-use-google-gemini-3.8-flash
How do I use Claude Opus 5?
/q/how-to-use-anthropic-claude-opus-5
How do I use Grok 4.6?
/q/how-to-use-xai-grok-4.6
How do I use Glm-5.3?
/q/how-to-use-zai-org-glm-5.3
How do I use Kimi K3?
/q/how-to-use-moonshot-kimi-k3
How do I use Qwen3.8 Max?
/q/how-to-use-alibaba-qwen3.8-max
How do I use Qwen3.8-27b?
/q/how-to-use-qwen-qwen3.8-27b
How do I use GPT-5.6 Sol?
/q/how-to-use-openai-gpt-5.6-sol
How do I use Gemini 3.1 Pro?
/q/how-to-use-google-gemini-3.1-pro
How do I use GLM-5.2 Fast Preview?
/q/how-to-use-zai-org-glm-5.2-fast-preview
How do I use MiniMax M3?
/q/how-to-use-minimax-m3
How do I use Kimi-K2.6?
/q/how-to-use-moonshot-kimi-k2.6
How do I use Wan 3.0 Prime (Text To Video)?
/q/how-to-use-alibaba-wan-3.0-prime
How do I use Qwen3.6 Plus?
/q/how-to-use-alibaba-qwen3.6-plus

Pricing

15
How much does Claude Fable 5.1 cost?
/q/anthropic-claude-fable-5.1-pricing
How much does Gemini 3.8 Flash cost?
/q/google-gemini-3.8-flash-pricing
How much does Claude Opus 5 cost?
/q/anthropic-claude-opus-5-pricing
How much does Grok 4.6 cost?
/q/xai-grok-4.6-pricing
How much does Glm-5.3 cost?
/q/zai-org-glm-5.3-pricing
How much does Kimi K3 cost?
/q/moonshot-kimi-k3-pricing
How much does Qwen3.8 Max cost?
/q/alibaba-qwen3.8-max-pricing
How much does Qwen3.8-27b cost?
/q/qwen-qwen3.8-27b-pricing
How much does GPT-5.6 Sol cost?
/q/openai-gpt-5.6-sol-pricing
How much does Gemini 3.1 Pro cost?
/q/google-gemini-3.1-pro-pricing
How much does GLM-5.2 Fast Preview cost?
/q/zai-org-glm-5.2-fast-preview-pricing
How much does MiniMax M3 cost?
/q/minimax-m3-pricing
How much does Kimi-K2.6 cost?
/q/moonshot-kimi-k2.6-pricing
How much does Wan 3.0 Prime (Text To Video) cost?
/q/alibaba-wan-3.0-prime-pricing
How much does Qwen3.6 Plus cost?
/q/alibaba-qwen3.6-plus-pricing

Python

15
Claude Fable 5.1 Python example?
/q/anthropic-claude-fable-5.1-python-example
Gemini 3.8 Flash Python example?
/q/google-gemini-3.8-flash-python-example
Claude Opus 5 Python example?
/q/anthropic-claude-opus-5-python-example
Grok 4.6 Python example?
/q/xai-grok-4.6-python-example
Glm-5.3 Python example?
/q/zai-org-glm-5.3-python-example
Kimi K3 Python example?
/q/moonshot-kimi-k3-python-example
Qwen3.8 Max Python example?
/q/alibaba-qwen3.8-max-python-example
Qwen3.8-27b Python example?
/q/qwen-qwen3.8-27b-python-example
GPT-5.6 Sol Python example?
/q/openai-gpt-5.6-sol-python-example
Gemini 3.1 Pro Python example?
/q/google-gemini-3.1-pro-python-example
GLM-5.2 Fast Preview Python example?
/q/zai-org-glm-5.2-fast-preview-python-example
MiniMax M3 Python example?
/q/minimax-m3-python-example
Kimi-K2.6 Python example?
/q/moonshot-kimi-k2.6-python-example
Wan 3.0 Prime (Text To Video) Python example?
/q/alibaba-wan-3.0-prime-python-example
Qwen3.6 Plus Python example?
/q/alibaba-qwen3.6-plus-python-example

API key

15
How do I get a Claude Fable 5.1 API key?
/q/anthropic-claude-fable-5.1-api-key
How do I get a Gemini 3.8 Flash API key?
/q/google-gemini-3.8-flash-api-key
How do I get a Claude Opus 5 API key?
/q/anthropic-claude-opus-5-api-key
How do I get a Grok 4.6 API key?
/q/xai-grok-4.6-api-key
How do I get a Glm-5.3 API key?
/q/zai-org-glm-5.3-api-key
How do I get a Kimi K3 API key?
/q/moonshot-kimi-k3-api-key
How do I get a Qwen3.8 Max API key?
/q/alibaba-qwen3.8-max-api-key
How do I get a Qwen3.8-27b API key?
/q/qwen-qwen3.8-27b-api-key
How do I get a GPT-5.6 Sol API key?
/q/openai-gpt-5.6-sol-api-key
How do I get a Gemini 3.1 Pro API key?
/q/google-gemini-3.1-pro-api-key
How do I get a GLM-5.2 Fast Preview API key?
/q/zai-org-glm-5.2-fast-preview-api-key
How do I get a MiniMax M3 API key?
/q/minimax-m3-api-key
How do I get a Kimi-K2.6 API key?
/q/moonshot-kimi-k2.6-api-key
How do I get a Wan 3.0 Prime (Text To Video) API key?
/q/alibaba-wan-3.0-prime-api-key
How do I get a Qwen3.6 Plus API key?
/q/alibaba-qwen3.6-plus-api-key