Product · Featured
How Agent.Space Works: Change the Agent, Keep the Project Moving
Learn how Agent.Space keeps models, Agent harnesses, Sessions, files, Previews, and team handoffs together in one cloud Workspace.
Blog
01 · Workspace & product
Product
What Agent.Space changes about cloud sessions, persistent files, handoffs, and team collaboration.
Product
How to Use Agent.Space: Start Your First Workspace Project
Create a Workspace, choose a compatible Agent and model, add project files, define a testable task, review the output, and save the next step.
Product
What Is the Agent Client Protocol (ACP)?
Learn what Agent Client Protocol standardizes between coding agents and clients, how it works, and what its compatibility lists do and do not prove.
Product
How to Use the Agent.Space Developer API
Create an Agent.Space API key, discover available models, connect through supported server SDKs, and verify how Share or Flex funds each request.
Product
Agent.Space Share vs Flex: Fixed Allowance or Pay as You Go?
Compare Agent.Space Share and Flex by model access, allowance resets, pay-as-you-go usage, expiration, and the workloads each option fits.
Product
Coding Agent Handoffs for Teams: Continue Work Without Sharing Accounts
Hand off coding-agent work through shared files, Sessions, Previews, evidence, and roles without exchanging upstream accounts or passwords.
Product
Coding Agent Workspace Security: Isolation, Permissions, and Secret Boundaries
Evaluate coding-agent security across runtime isolation, member roles, API keys, project files, exports, and the controls that remain your responsibility.
02 · Agent guides
Agents
Practical guides, comparisons, official updates, and workflows for every Agent available in Agent.Space.
Agents
Codex vs Claude Code Pricing and Workflow (2026)
Compare Codex vs Claude Code pricing, subscription and API access, agent workflows, permissions, and how to test both on the same repository.
Agents
Claude Sonnet 5.5 in Claude Code: Setup and Upgrade Checks
Use Claude Sonnet 5.5 in Claude Code, verify what the sonnet alias resolves to, and test cost and coding quality before changing your default.
Agents
GPT-6.1 Sol Missing in ChatGPT? Check Work and Codex
Find GPT-6.1 Sol and Luna in ChatGPT Work or Codex, check launch eligibility and workspace settings, and distinguish Chat access from API access.
Agents
How to Reduce Codex Quota Usage Without Losing Work
Reduce avoidable Codex quota usage by controlling task scope, context, tools, retries, and handoffs—without discarding useful work or bypassing limits.
Agents
Why Codex Quota Runs Out Faster: Rates, Cache, and Rework
Diagnose faster Astra quota consumption by separating allowance, model rates, cache reads and writes, repeated calls, and the cost of getting one accepted result.
Agents
Beyond the Pelican Test: How to Check Coding Agent Regressions
Build a small, repeatable evaluation from real coding work. Control the starting state, grade accepted results, and distinguish a bad run from a useful regression signal.
03 · Model selection
Models
Separate the Agent from the model underneath it, then compare capability, speed, compatibility, and cost.
Models
How to Choose a Coding Agent Model: Task, Context, Cost, and Tools
Evaluate GPT-6.1 Sol, Luna, and Claude 5.5 alongside your current coding model using task fit, tool compatibility, context, and cost per accepted result.
Models
Claude Opus 5.5 vs Sonnet 5.5: Pricing and Coding Task Fit
Compare Claude Opus 5.5 and Sonnet 5.5 API prices, cache costs, and a worked request budget, then choose by accepted coding results.
Models
GPT-6.1 Sol: API Pricing, Codex Access, and Upgrade Checks
Check GPT-6.1 Sol pricing, cached input, Codex setup, and the tool-calling changes to test before upgrading from GPT-6 Sol.
Models
GPT-6 Astra Benchmarks: What the Scores Really Show
Learn what GPT-6 Astra benchmark scores prove, how vendor and independent evals differ, and why harness, effort, safeguards, and cost change results.
Models
Claude Fable 5.1: Pricing, 1M Context, and Coding Agent Fit
Claude Fable 5.1 has a 1M-token context window, costs $10/$50 per million tokens, and offers $0.25 cache reads. See when it fits coding agents.
Models
GPT-6 Astra Context Window in Codex: 1.05M vs 258K
Why GPT-6 Astra lists a 1.05M API context window while Codex may show about 258K usable tokens, plus pricing, access, and setup checks.
Start in one Space
Bring your next task to Agent.Space
Choose an Agent, keep the project in the cloud, and collaborate without losing context.