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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 Opus 4.7?
/q/how-to-use-anthropic-claude-opus-4.7
How do I use GPT-5.4?
/q/how-to-use-openai-gpt-5.4
How do I use Gemini 3.1 Pro?
/q/how-to-use-google-gemini-3.1-pro
How do I use Kimi K2.6?
/q/how-to-use-moonshot-kimi-k2.6
How do I use Claude Sonnet 4.6?
/q/how-to-use-anthropic-claude-sonnet-4.6
How do I use M2.7?
/q/how-to-use-minimax-m2.7
How do I use GPT-5.4 Mini?
/q/how-to-use-openai-gpt-5.4-mini
How do I use Grok 4?
/q/how-to-use-xai-grok-4
How do I use Gemini 3 Flash?
/q/how-to-use-google-gemini-3-flash
How do I use Claude Haiku 4.5?
/q/how-to-use-anthropic-claude-haiku-4.5
How do I use Flux-2-Klein-9b?
/q/how-to-use-black-forest-labs-flux-2-klein-9b
How do I use Imagen 4?
/q/how-to-use-google-imagen-4
How do I use Veo 3.1?
/q/how-to-use-google-veo-3.1
How do I use Nova-3?
/q/how-to-use-deepgram-nova-3
How do I use Aura-2-EN?
/q/how-to-use-deepgram-aura-2-en

Pricing

15
How much does Claude Opus 4.7 cost?
/q/anthropic-claude-opus-4.7-pricing
How much does GPT-5.4 cost?
/q/openai-gpt-5.4-pricing
How much does Gemini 3.1 Pro cost?
/q/google-gemini-3.1-pro-pricing
How much does Kimi K2.6 cost?
/q/moonshot-kimi-k2.6-pricing
How much does Claude Sonnet 4.6 cost?
/q/anthropic-claude-sonnet-4.6-pricing
How much does M2.7 cost?
/q/minimax-m2.7-pricing
How much does GPT-5.4 Mini cost?
/q/openai-gpt-5.4-mini-pricing
How much does Grok 4 cost?
/q/xai-grok-4-pricing
How much does Gemini 3 Flash cost?
/q/google-gemini-3-flash-pricing
How much does Claude Haiku 4.5 cost?
/q/anthropic-claude-haiku-4.5-pricing
How much does Flux-2-Klein-9b cost?
/q/black-forest-labs-flux-2-klein-9b-pricing
How much does Imagen 4 cost?
/q/google-imagen-4-pricing
How much does Veo 3.1 cost?
/q/google-veo-3.1-pricing
How much does Nova-3 cost?
/q/deepgram-nova-3-pricing
How much does Aura-2-EN cost?
/q/deepgram-aura-2-en-pricing

Python

15
Claude Opus 4.7 Python example?
/q/anthropic-claude-opus-4.7-python-example
GPT-5.4 Python example?
/q/openai-gpt-5.4-python-example
Gemini 3.1 Pro Python example?
/q/google-gemini-3.1-pro-python-example
Kimi K2.6 Python example?
/q/moonshot-kimi-k2.6-python-example
Claude Sonnet 4.6 Python example?
/q/anthropic-claude-sonnet-4.6-python-example
M2.7 Python example?
/q/minimax-m2.7-python-example
GPT-5.4 Mini Python example?
/q/openai-gpt-5.4-mini-python-example
Grok 4 Python example?
/q/xai-grok-4-python-example
Gemini 3 Flash Python example?
/q/google-gemini-3-flash-python-example
Claude Haiku 4.5 Python example?
/q/anthropic-claude-haiku-4.5-python-example
Flux-2-Klein-9b Python example?
/q/black-forest-labs-flux-2-klein-9b-python-example
Imagen 4 Python example?
/q/google-imagen-4-python-example
Veo 3.1 Python example?
/q/google-veo-3.1-python-example
Nova-3 Python example?
/q/deepgram-nova-3-python-example
Aura-2-EN Python example?
/q/deepgram-aura-2-en-python-example

API key

15
How do I get a Claude Opus 4.7 API key?
/q/anthropic-claude-opus-4.7-api-key
How do I get a GPT-5.4 API key?
/q/openai-gpt-5.4-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 Kimi K2.6 API key?
/q/moonshot-kimi-k2.6-api-key
How do I get a Claude Sonnet 4.6 API key?
/q/anthropic-claude-sonnet-4.6-api-key
How do I get a M2.7 API key?
/q/minimax-m2.7-api-key
How do I get a GPT-5.4 Mini API key?
/q/openai-gpt-5.4-mini-api-key
How do I get a Grok 4 API key?
/q/xai-grok-4-api-key
How do I get a Gemini 3 Flash API key?
/q/google-gemini-3-flash-api-key
How do I get a Claude Haiku 4.5 API key?
/q/anthropic-claude-haiku-4.5-api-key
How do I get a Flux-2-Klein-9b API key?
/q/black-forest-labs-flux-2-klein-9b-api-key
How do I get a Imagen 4 API key?
/q/google-imagen-4-api-key
How do I get a Veo 3.1 API key?
/q/google-veo-3.1-api-key
How do I get a Nova-3 API key?
/q/deepgram-nova-3-api-key
How do I get a Aura-2-EN API key?
/q/deepgram-aura-2-en-api-key