AI 2026 年 6 月 17 日
FreeModel review: Claude Fable 5, gpt-5.5, Claude Code, and OpenAI-compatible API access
FreeModel review: Claude Fable 5, gpt 5.5, Claude Code, and OpenAI compatible API access FreeModel is worth testing if you want one API prov
FreeModel review: Claude Fable 5, gpt-5.5, Claude Code, and OpenAI-compatible API access
FreeModel is worth testing if you want one API provider for Claude Code, Cline, Cursor, ChatBox, OpenAI SDK projects, and other AI development tools. It supports Claude-style API access for Anthropic ecosystem clients and OpenAI-compatible access for tools that expect a custom
base_url and API key.The main draw is practical: you can register, claim the signup credit, create an API key, and test your own workflow before paying for a larger tier.
Registration link: FreeModel signup
What FreeModel is
FreeModel is an API relay for developers and AI tool users. It is not just a web chat interface. The value is in API routing, model access, credit balance, rate-limit tiers, and compatibility with common clients.
Based on the information provided, FreeModel supports two common integration styles:
- Claude API format for Claude Code, Cline, and Anthropic SDK workflows
- OpenAI-compatible API format for Cursor, ChatBox, OpenAI SDK, ChatGPT SDK, and similar tools
If you already know how to set a base URL, API key, and model name, FreeModel is easy to evaluate. If you only want a casual browser chatbot, it is probably not the best fit.
Signup credit and first test
The current offer says new users can receive a
$10 balance after registering and binding a phone number. Treat that credit as a testing budget, not as a reason to run random prompts.Good first tests include:
- A small Claude Code or Cline coding task
- A normal Cursor or ChatBox conversation
- An OpenAI SDK call to
/v1/chat/completions - A Responses API test with streaming or multi-turn context
- Your own mixed-language prompt with code, English, and Chinese if that is your normal workload
For API relays, the useful questions are simple: does it connect, does the model behave as expected, does billing look sane, and does the client fail cleanly when something goes wrong?
Claude Fable 5 is live
According to the provided FreeModel information, Claude Fable 5 is now available through the API. The note also says Claude Fable 5 is priced at
2x Opus because of premium capabilities and limited availability.That matters for usage planning. Do not send every lightweight prompt to a premium model. Use Claude Fable 5 for tasks where a stronger model is actually useful: complex coding work, long-context analysis, architecture review, hard reasoning, or high-value document processing.
Pricing: credits and monthly plans are different
FreeModel pricing has two separate concepts:
- API credits are spendable balance.
- Monthly plans are rate-limit tiers.
If you run out of balance, top up credits. If you hit rate limits, upgrade the plan. Buying credits does not automatically increase the rate-limit window, and buying a plan is not the same as buying that amount of spendable balance.
One-time API credit top-ups
The provided pricing lists
$30 API Credits with different checkout prices depending on payment method and region:| Payment method | Region | Price |
|---|---|---|
| UPI | India | ₹99.00 |
| Card | India | ₹119.60 |
| Card | UK / International | £0.90 |
| Crypto | USDT | 1.22 USDT |
These credits are described as spendable balance with no rate limits and no expiry. Checkout prices can move slightly with live GBP conversion and payment routing, so check the live FreeModel page before paying.
Monthly plans and rate limits
Monthly plans control rate limits. They are not account balance.
| Plan | GBP/month | Approx USD | Approx INR | Approx CNY |
|---|---|---|---|---|
| Pro | £5 | $6.67 | ₹664 | ¥46 |
| Pro+ | £10 | $13.35 | ₹1,329 | ¥92 |
| Max | £20 | $26.69 | ₹2,658 | ¥185 |
| Ultra | £100 | $133.45 | ₹13,289 | ¥924 |
| Power | £200 | $266.90 | ₹26,578 | ¥1,847 |
Rate limits by plan:
| Plan | 5-hour window | 7-day window |
|---|---|---|
| Pro | $10 / 5h | $66 / 7d |
| Pro+ | $20 / 5h | $132 / 7d |
| Max | $40 / 5h | $264 / 7d |
| Ultra | $200 / 5h | $1,320 / 7d |
| Power | $400 / 5h | $2,640 / 7d |
For basic testing, the signup credit or a small credit top-up is enough. If you connect FreeModel to Claude Code, Cursor, or your own gateway and keep hitting rate limits, then Pro, Pro+, or Max becomes relevant.
Simple buying rule
Use this rule before paying:
- Rate limited: upgrade the monthly plan.
- Need more balance: top up API credits.
This prevents the most common billing misunderstanding. A plan raises your allowed usage window. Credits give you spendable balance.
Supported API endpoints
FreeModel mentions two common API shapes:
/v1/chat/completions and /v1/responses./v1/chat/completions
/v1/chat/completions is the classic stateless chat API. Every request sends the message history again.It is usually the safest starting point because many clients, SDKs, scripts, and proxy tools already support it.
Use it for:
- Existing OpenAI SDK projects
- ChatBox and similar desktop clients
- Simple scripts
- Compatibility-first API gateways
/v1/responses
/v1/responses is the newer Responses API. It can support stateful multi-turn flows through previous_response_id and richer streaming events.Use it when your client supports it and you want a more modern agent-oriented API shape. For simple client compatibility, start with chat completions first.
Using FreeModel with Claude Code and Cline
FreeModel provides Claude API format access, which makes it relevant for Claude Code, Cline, and Anthropic SDK workflows.
The important settings are:
- API base URL:
https://api.freemodel.dev - API key: create it in the FreeModel dashboard
- Model name: copy the actual available model name from the dashboard
If your tool supports a custom Anthropic base URL, set it to FreeModel’s API endpoint and add your API key. Do not guess model names. Copy them from the dashboard.
One FAQ point is worth knowing: if your workflow uses fan-out or sub-agents, the orchestrator may assign different models to sub-tasks. Your selected model can handle the main agent while sub-tasks use other models. That is expected behavior in many agent workflows, not necessarily a FreeModel bug.
Using FreeModel with OpenAI-compatible clients
Cursor, ChatBox, OpenAI SDK projects, and ChatGPT SDK-style tools usually only need a custom base URL and API key.
A typical configuration looks like this:
Base URL: https://api.freemodel.dev
API Key: create it in the FreeModel dashboard
Endpoint: /v1/chat/completions or /v1/responses
Model: gpt-5.5, Claude Fable 5, or another live dashboard model
If the client only supports classic OpenAI chat completions, use
/v1/chat/completions. If it supports the Responses API, test /v1/responses with streaming and multi-turn context.Hermes Agent configuration example
For Hermes Agent, a FreeModel provider can look like this:
model_provider = "freemodel"
model = "gpt-5.5"
model_reasoning_effort = "xhigh"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.freemodel]
name = "freemodel"
base_url = "https://api.freemodel.dev"
wire_api = "responses"
The key part is
wire_api = "responses", which tells Hermes to use the Responses API rather than classic chat completions. Keep the API key in your normal local secret configuration. Do not paste it into a public repository or public article.Fixing 413 Payload Too Large
If you receive
413 Payload Too Large, the request body is too large.Provided limits:
| Tier | Request body limit |
|---|---|
| Tier 0 | 3MB |
| Tier 1+ | 5MB |
Practical fixes:
- Keep media files under 1MB when possible.
- Reference local files by path instead of embedding media in the request body.
- Split large contexts into smaller requests.
- Avoid sending repeated logs, screenshots, and full project dumps in one call.
Agent tools can accumulate large context quickly. If a Claude Code or Cline session starts failing, check request size before changing models.
Fixing 403 ip_account_conflict
This error means the current IP address is already linked to another free account:
403 permission_error: ip_account_conflict
This IP is already linked to another free account.
Only one free account is allowed per IP address.
FreeModel allows only one free account per IP to reduce abuse.
Acceptable fixes:
- Upgrade to a paid plan. Paid plans are not IP-restricted in the same way.
- Use your own mobile data or a different legitimate network if you were affected by a shared IP.
- Use a clean network for your own account setup, not for mass free-account creation.
For long-term use, a stable paid account is better than repeatedly fighting free-account restrictions.
Why Claude gets slow after a few tasks
Claude Code and similar agent tools can slow down after several large tasks because the session context keeps growing. Every message, tool call, file snippet, and log line increases the context the model has to process on each response.
The fix is simple: start a new session with fresh context. Keep one session focused on one task. When the task is done, clear the conversation and begin again.
Who should use FreeModel
FreeModel is a good fit if you:
- Use Claude Code, Cline, Cursor, ChatBox, or OpenAI SDK clients
- Want one API provider for several AI tools
- Want to test
gpt-5.5, Claude Fable 5, or other dashboard models - Already understand base URLs, API keys, and model names
- Want to test with signup credit before topping up
It is less suitable if you:
- Only want a simple web chatbot
- Do not want to manage API keys or client settings
- Need enterprise contracts, strict SLA, and formal procurement
- Do not want to test compatibility yourself
API relay quality depends on client behavior, model availability, network conditions, billing, and rate limits. The signup credit helps you test, but it does not replace your own workload check.
Test checklist before using it daily
After signing up, test in this order:
- Confirm balance, API key, and available models in the dashboard.
- Send a simple request from ChatBox or a small script.
- Connect Cursor, Claude Code, or Cline.
- Test English, Chinese, code tasks, and long-context prompts.
- Check billing after each real task.
- Watch how timeouts and failed requests are reported.
- Run one task close to your real workload and see whether the 5-hour and 7-day windows are enough.
If you plan to rely on FreeModel long term, also track concurrency, model availability notices, rate-limit errors, and billing behavior during busy hours.
Registration link
FreeModel’s current appeal is the combination of signup credit, Claude API compatibility, OpenAI-compatible endpoints, and access to models such as
gpt-5.5 and Claude Fable 5.Registration link: FreeModel signup
Use the signup credit for a few real tasks first. If Claude Code, Cline, Cursor, ChatBox, or your SDK project works well, then consider topping up credits or upgrading the plan.
FAQ
Does FreeModel give $10 signup credit?
Based on the provided information, new users can receive a
$10 balance after registering and binding a phone number. Promotions can change, so verify the live FreeModel page before relying on the amount.Is Claude Fable 5 available?
The provided FreeModel information says Claude Fable 5 is live and available via API. It is priced at
2x Opus, so reserve it for tasks where the stronger model is worth the cost.Is a monthly plan the same as balance?
No. Monthly plans are rate-limit tiers. Credits are spendable balance. Upgrade the plan when you are rate limited. Top up credits when you need more balance.
Is the $300 value for Pro real?
The provided FAQ says the Pro plan’s base 7-day limit works out to around
$266.68 over four weeks, and random credit giveaways for active Pro users can push the value above $300. Treat this as a platform claim and verify it on the live FreeModel page.Why does FreeModel switch models even when I selected one?
Fan-out and sub-agent workflows can assign different models to sub-tasks. The selected model may handle the main agent while sub-tasks use other models. That is expected in many orchestrated workflows.
Can FreeModel be used with Claude Code?
Yes, if your Claude Code setup supports a custom Claude/Anthropic API endpoint. Use
https://api.freemodel.dev, your API key, and a model name copied from the dashboard.Can I use it with Cursor or ChatBox?
Yes. Configure it as an OpenAI-compatible provider with
https://api.freemodel.dev, your API key, and a supported model name.Should I use /v1/chat/completions or /v1/responses?
Use
/v1/chat/completions for maximum compatibility. Use /v1/responses when your client supports it and you need stateful flows or richer streaming behavior.How do I fix 413 Payload Too Large?
Tier 0 has a 3MB body limit, and Tier 1+ has a 5MB body limit. Reduce embedded media, reference files by path, and split large contexts into smaller requests.
How do I fix 403 ip_account_conflict?
That error means your IP is already linked to another free account. Upgrade to a paid plan or use a legitimate clean network for your own account. Do not use network switching to mass-create free accounts.
Is gpt-5.5 always available?
The provided configuration uses
gpt-5.5, but model availability and pricing can change. Check the FreeModel dashboard before configuring a client.Final thoughts
FreeModel is interesting because it covers both Claude-style and OpenAI-compatible workflows. That makes it useful for people who move between Claude Code, Cline, Cursor, ChatBox, and SDK projects.
If you want to try it, start here: FreeModel signup
Register, claim the signup credit, run real tasks, then decide whether you need more credits or a higher rate-limit tier.
This article is based on user-provided FreeModel information and the public FreeModel entry point on 2026-06-17. Balance rules, model availability, pricing, currency conversion, API behavior, and promotions may change. Always verify on the live FreeModel website and dashboard before paying.
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作者：OB 发表日期：2026 年 6 月 17 日