AI Coding Agent Comparison · 2026

Gemini CLI vs Goose

Gemini CLI (CLI / terminal agent, Free (Flash) + Google AI Pro) vs Goose (CLI / terminal agent, Free (open source) + API costs): pricing, models, open-source status, benchmarks, and best use cases. See which AI coding agent is right for your workflow.

Gemini CLI

Google · CLI / terminal agent
open source
Free (Flash) + Google AI Pro

Goose

Block · CLI / terminal agent
open source
Free (open source) + API costs
ComparisonGemini CLIGoose
CategoryCLI / terminal agentCLI / terminal agent
TypeTerminal agentTerminal agent
VendorGoogleBlock
PricingFree (Flash) + Google AI ProFree (open source) + API costs
Open sourceYesYes
ModelsGemini 3.1 Flash, Gemini 3.1 ProAny (Claude, GPT, Gemini, local models)
BenchmarksNot publishedNot published
Best forGoogle ecosystem users, long-context tasks, low-cost experimentation on FlashEnterprise-friendly open-source agents, MCP extensibility, any-model workflows

Gemini CLI is open source and best for google ecosystem users, long-context tasks, low-cost experimentation on flash. Google's open-source terminal agent for Gemini models. Up to 1M-token context on Pro models. Free tier is generous for Flash; Pro models need a paid Google AI or API plan.

Goose is open source and best for enterprise-friendly open-source agents, mcp extensibility, any-model workflows. Block's open-source AI agent built around the Model Context Protocol (MCP) for extensible tool use. Supports any model provider with an enterprise-friendly posture.

Both tools are part of the 2026 AI coding agent landscape. The right choice depends on whether you need a CLI / terminal agent or a CLI / terminal agent, your budget, and which models you prefer. See the full list of coding agents on our coding agents page to compare more options.