AI Chat APIs
AI Chat API Collections
One hub for frontier chat models. Claude 4.5 Series and Gemini 3 Series with Extended Thinking, 1M context windows, and industry-leading 80.9% SWE-bench coding performance.
Available Chat APIs
Frontier LLMs with Extended Thinking and deep reasoning ready to integrate.
GPT-6.1 Sol
GPT-6.1 Sol API on PoYo. Use Chat Completions or Responses at $1.6 input and $8 output per million tokens, 20% below official standard rates.
Claude Sonnet 5.5
Claude Sonnet 5.5 API on PoYo. Use Chat Completions or Claude Messages at $1.6 input and $8 output per million tokens, 20% below official standard rates.
GPT-6 Luna
GPT-6 Luna API on PoYo. Use Chat Completions or Responses at $0.08 input and $0.4 output per million tokens, 20% below official standard rates.
GPT-6 Sol
GPT-6 Sol API on PoYo. Use Chat Completions or Responses at $1.6 input and $8 output per million tokens, 20% below official standard rates.
Claude Opus 5.5
Claude Opus 5.5 API on PoYo. Use Chat Completions or Claude Messages at $3.2 input and $16 output per million tokens, 20% below official standard rates.
Grok 4.7
Grok 4.7 API on PoYo. Use Chat Completions at $1.6 input and $4.8 output per million tokens, 20% below official standard rates.
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash is a 552B MoE chat model with native vision, 1M context, 384K max output, and 8B/16B active parameters for cheaper agent workloads.
GPT-6 Astra
GPT-6 Astra API for advanced reasoning, coding, and agent workflows. Use Chat Completions or Responses with pay-as-you-go pricing on PoYo.
Claude Fable 5.1
Anthropic's most capable generally available model for long-horizon coding, knowledge work, research, vision, 1M context, and up to 128K output.
Gemini 3.8 Flash
Google's best reasoning and coding Flash model for long-horizon software engineering, autonomous agents, and enterprise workflows.
Grok 4.6
xAI's frontier model for long-running agents, coding, engineering, knowledge work, and ambitious interactive or visual projects.
Gemini 3.7 Flash
Google's GA Flash model for agentic coding, multimodal reasoning, web development, long-context knowledge work, and tool-using applications.
Claude Opus 5
Anthropic's flagship agentic model for advanced coding, long-horizon execution, computer use, deep research, and professional knowledge work.
Kimi K3
Moonshot AI's 2.8T-parameter flagship multimodal model with a 1M-token context window, built for long-horizon coding, deep reasoning, knowledge work, and tool-using agents.
GPT-5.6
GPT-5.6 API access for Sol, Terra, and Luna through the Responses API, from high-throughput automation to frontier coding and agent workflows.
Claude Sonnet 5
Claude Sonnet 5 API access for agentic coding, long-running agents, browser and computer use, professional workflows, 1M context, and up to 128K output.
Gemini 3.5 Flash
Gemini 3.5 Flash API access for chat, coding, reasoning, and production agent workflows.
Claude Opus 4.8
Claude Opus 4.8 supports long-context chat, agentic coding, professional reasoning, high-output workflows, 1M context, and up to 128K output.
DeepSeek V4 Flash
DeepSeek V4 Flash is a fast, economical DeepSeek V4 API model with 1M-context chat, 284B total parameters, and 13B active parameters.
DeepSeek V4 Pro
DeepSeek V4 Pro is a stronger reasoning, coding, and agent workflow model with 1M-context chat, 1.6T total parameters, and 49B active parameters.
Claude Opus 4.7
Anthropic's most capable generally available model for frontier coding, deep reasoning, and high-resolution vision.
GPT-5.5
GPT-5.5 API access for chat, coding, reasoning, and production agent workflows.
GPT-5.4
GPT-5.4 API access for chat, coding, reasoning, and production agent workflows.
GPT-5.2
GPT-5.2 API access for chat, coding, reasoning, and production agent workflows.
Claude 4.6 API
Claude Sonnet 4.6 and Claude Opus 4.6 API access for coding, agents, computer use, and long-context reasoning.
Gemini 3 Series
Google Gemini 3 Series — Flash and Pro with 1M context window and Dynamic Thinking Levels.
Claude 4.5 Series
Anthropic Claude 4.5 Series — Opus, Sonnet, Haiku with 80.9% SWE-bench and Extended Thinking.
Comparison
poyo.ai vs OpenAI vs Anthropic vs Google
How poyo.ai's Chat API stacks up against official platforms for production use cases.
| Feature | poyo.ai | OpenAI | Anthropic | Google AI |
|---|---|---|---|---|
| Model Coverage | Claude + Gemini full series | GPT series only | Claude series only | Gemini series only |
| Pricing | Transparent credits | Official pricing | Official pricing | Official pricing |
| Stability | Production-grade, steady QoS | Official service | Official service | Official service |
| API Compatibility | OpenAI SDK compatible + native | OpenAI SDK | Anthropic SDK | Google AI SDK |
| Context Window | Up to 1M tokens | Up to 128K | Up to 200K | Up to 1M |
FAQ
Frequently Asked Questions
Common questions about the AI Chat API.
We support Claude 4.5 Series (Opus, Sonnet, Haiku) and Gemini 3 Series (Flash Preview, Pro Preview) — 5 frontier models total.
Use Claude Opus 4.5 for complex reasoning and agents; Sonnet 4.5 for balanced tasks; Haiku 4.5 for high-volume cost-effective work; Gemini 3 Flash for fast coding; Gemini 3 Pro for deep analysis.
Yes. The /v1/chat/completions endpoint is fully OpenAI SDK compatible. Simply change the base URL to use all 5 models.
Claude 4.5's deep reasoning mode that shows step-by-step thought process. Gemini 3 offers Dynamic Thinking Levels for configurable reasoning depth.
Gemini 3 Series supports 1M tokens, Claude 4.5 Series supports 200K tokens. Both support up to 64K output tokens.
Credits consumed based on input/output tokens. Credits never expire, pricing is transparent and predictable with no subscription fees.