Gemini 4 Hydrogen is free on the Gemini API free tier and in Google AI Studio, within rate limits. Here's every free route Google confirms, what still needs a paid plan, and how to stretch the quota.

Gemini 4 Hydrogen is Google's fast Gemini 4 model for coding and agents, released Nov 12, 2026: $1.50/$7.50 per 1M tokens, a 1M-token context, four thinking levels including the new xhigh, and a free API tier.

Ashley Innocent

November 13, 2026

Orchestrator in Google Antigravity pairs Gemini 4 Carbon or Argon as planner with Gemini 4 Hydrogen as executor, handing control back and forth inside one task. Here's how the loop works, what the 24% quota and 19% speed claims mean, who gets it, and how to build the same spli...

INEZA Felin-Michel

November 13, 2026

Gemini 4 Hydrogen costs $1.50 per 1M input tokens and $7.50 per 1M output tokens, flat across its 1M-token context. Here's the full tier table, what each thinking level costs, worked examples for a chat call and an agent loop, and how Hydrogen compares with Carbon, Argon and G...

INEZA Felin-Michel

November 13, 2026

The Gemini 4 Hydrogen API uses the model ID gemini-4-hydrogen on the Interactions endpoint. Here's how to get a key, send your first request, set the thinking level, send a PDF, call functions, stream responses and handle errors.

Ashley Innocent

November 13, 2026

ERNIE 5.5 Flash costs $0 on OpenRouter's :free endpoint, and its Base weights are free to download. Here are the limits, the licence, the setup, and how to keep your agent inside the free quota.

Ashley Innocent

November 12, 2026

The Gemini Decisions API free tier gives gemini-decision-1 200 requests per minute, 50,000 tokens per minute and 10,000 requests per day at $0 with no billing setup. Here is what that covers in real workloads, the token math at $0.10 per 1M, and how to keep tests and CI off yo...

ERNIE 5.5 Flash Preview is free on OpenRouter, DeepSeek V4.1 Flash ships MIT weights at $0.30/$1.20 per 1M at peak, and GPT-6 Luna has the lowest paid list price at $0.10/$0.50. Here is the side-by-side, the cost of a real agent call, and how to let your coding agent test all ...

ERNIE 5.5 Flash Preview is free on OpenRouter. Here is how to wire it into OpenCode and Claude Code, a coding task that fits the 50-request daily cap, and what breaks on the free route.

INEZA Felin-Michel

November 12, 2026

ERNIE 5.5 Flash Preview is callable today on Baidu Qianfan and free on OpenRouter. Here is how to get a key, send requests, stream, handle reasoning tokens and the 1M window, and fix the errors you'll hit.

INEZA Felin-Michel

November 12, 2026

Both charge $0.10 per 1M input tokens and nothing for output. Gemini takes audio, video, PDFs and 1,000 questions with a free tier; OpenAI is GA with prompt caching, JSON input and ZDR. Here's how to pick.

Ashley Goolam

November 12, 2026

ERNIE 5.5 Flash is Baidu's 280B-parameter MoE with 14B active and a 1M-token context, released as a Base checkpoint and a post-trained Preview. Here is how the two differ, what the architecture changes, what Baidu's benchmarks show and how to access it.

INEZA Felin-Michel

November 12, 2026

Google's Gemini Decisions API (POST /v1beta/decisions, model gemini-decision-1) scores up to 1,000 noul, choice and score questions over one multimodal input in a single pass, at $0.10 per 1M input tokens with no output charge. What it returns, what it costs, and where it fits.

INEZA Felin-Michel

November 12, 2026

A hands-on Gemini Decisions API tutorial: your first noul question, choice and score questions, image and PDF input, confidence-based routing, and a CI regression suite your coding agent builds with Apidog CLI.

INEZA Felin-Michel

November 12, 2026

ERNIE 5.5 Flash Base is open on Hugging Face. Here is the hardware it needs, Baidu's exact vLLM serve command, how to call the endpoint, and what changes when the Preview weights ship.

Ashley Innocent

November 12, 2026