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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 Gemini 4 Argon?
/q/how-to-use-google-gemini-4-argon
How do I use Claude Sonnet 5.5?
/q/how-to-use-anthropic-claude-sonnet-5.5
How do I use Claude Opus 5.5?
/q/how-to-use-anthropic-claude-opus-5.5
How do I use GPT-6.1 Sol?
/q/how-to-use-openai-gpt-6.1-sol
How do I use Grok 4.7?
/q/how-to-use-xai-grok-4.7
How do I use Kimi K3?
/q/how-to-use-moonshot-kimi-k3
How do I use Glm-5.3?
/q/how-to-use-zai-org-glm-5.3
How do I use Qwen3.8-Max?
/q/how-to-use-alibaba-qwen3.8-max
How do I use GPT-5.6 Sol?
/q/how-to-use-openai-gpt-5.6-sol
How do I use Qwen3.8-27b?
/q/how-to-use-qwen-qwen3.8-27b
How do I use Jev 1.14?
/q/how-to-use-typesafe-jev-1.14.0
How do I use GLM-5.3-Prime?
/q/how-to-use-zai-org-glm-5.3-prime
How do I use Pareto?
/q/how-to-use-unbiased-pareto
How do I use Gemini 3.1 Pro?
/q/how-to-use-google-gemini-3.1-pro
How do I use FLUX 3 Image Klein?
/q/how-to-use-black-forest-labs-flux-3-image-klein

Pricing

15
How much does Gemini 4 Argon cost?
/q/google-gemini-4-argon-pricing
How much does Claude Sonnet 5.5 cost?
/q/anthropic-claude-sonnet-5.5-pricing
How much does Claude Opus 5.5 cost?
/q/anthropic-claude-opus-5.5-pricing
How much does GPT-6.1 Sol cost?
/q/openai-gpt-6.1-sol-pricing
How much does Grok 4.7 cost?
/q/xai-grok-4.7-pricing
How much does Kimi K3 cost?
/q/moonshot-kimi-k3-pricing
How much does Glm-5.3 cost?
/q/zai-org-glm-5.3-pricing
How much does Qwen3.8-Max cost?
/q/alibaba-qwen3.8-max-pricing
How much does GPT-5.6 Sol cost?
/q/openai-gpt-5.6-sol-pricing
How much does Qwen3.8-27b cost?
/q/qwen-qwen3.8-27b-pricing
How much does Jev 1.14 cost?
/q/typesafe-jev-1.14.0-pricing
How much does GLM-5.3-Prime cost?
/q/zai-org-glm-5.3-prime-pricing
How much does Pareto cost?
/q/unbiased-pareto-pricing
How much does Gemini 3.1 Pro cost?
/q/google-gemini-3.1-pro-pricing
How much does FLUX 3 Image Klein cost?
/q/black-forest-labs-flux-3-image-klein-pricing

Python

15
Gemini 4 Argon Python example?
/q/google-gemini-4-argon-python-example
Claude Sonnet 5.5 Python example?
/q/anthropic-claude-sonnet-5.5-python-example
Claude Opus 5.5 Python example?
/q/anthropic-claude-opus-5.5-python-example
GPT-6.1 Sol Python example?
/q/openai-gpt-6.1-sol-python-example
Grok 4.7 Python example?
/q/xai-grok-4.7-python-example
Kimi K3 Python example?
/q/moonshot-kimi-k3-python-example
Glm-5.3 Python example?
/q/zai-org-glm-5.3-python-example
Qwen3.8-Max Python example?
/q/alibaba-qwen3.8-max-python-example
GPT-5.6 Sol Python example?
/q/openai-gpt-5.6-sol-python-example
Qwen3.8-27b Python example?
/q/qwen-qwen3.8-27b-python-example
Jev 1.14 Python example?
/q/typesafe-jev-1.14.0-python-example
GLM-5.3-Prime Python example?
/q/zai-org-glm-5.3-prime-python-example
Pareto Python example?
/q/unbiased-pareto-python-example
Gemini 3.1 Pro Python example?
/q/google-gemini-3.1-pro-python-example
FLUX 3 Image Klein Python example?
/q/black-forest-labs-flux-3-image-klein-python-example

API key

15
How do I get a Gemini 4 Argon API key?
/q/google-gemini-4-argon-api-key
How do I get a Claude Sonnet 5.5 API key?
/q/anthropic-claude-sonnet-5.5-api-key
How do I get a Claude Opus 5.5 API key?
/q/anthropic-claude-opus-5.5-api-key
How do I get a GPT-6.1 Sol API key?
/q/openai-gpt-6.1-sol-api-key
How do I get a Grok 4.7 API key?
/q/xai-grok-4.7-api-key
How do I get a Kimi K3 API key?
/q/moonshot-kimi-k3-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 Qwen3.8-Max API key?
/q/alibaba-qwen3.8-max-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 Qwen3.8-27b API key?
/q/qwen-qwen3.8-27b-api-key
How do I get a Jev 1.14 API key?
/q/typesafe-jev-1.14.0-api-key
How do I get a GLM-5.3-Prime API key?
/q/zai-org-glm-5.3-prime-api-key
How do I get a Pareto API key?
/q/unbiased-pareto-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 FLUX 3 Image Klein API key?
/q/black-forest-labs-flux-3-image-klein-api-key