AI Recommendation
Should you use LongCat-2.0?
LongCat-2.0 is listed for chat workloads and supports a 1.0M context window.
Use it when OpenCode Zen's free tier is enough for evaluation, demos, or light production traffic.
LongCat-2.0 Free API on OpenCode Zen
Free API Verified Catalog metadata matched Reasoning models.dev metadata
Meituan LongCat-2.0, a reasoning model with tool calling and a 1M-token context window
Free APIOpenAI compatibleReasoningTool callingReasoning
API Details
Copy-ready connection details
Base URL
https://opencode.ai/zen/v1 Model ID
longcat-2.0-free API format OpenAI Chat Completions
Technical Details
LongCat-2.0 specifications
Context window 1.0M
Max output 131K
Status Online
Family longcat
Released Jun 30, 2026
Last updated Jun 30, 2026
Free listing since Aug 7, 2026
Input text
Output text
Capabilities reasoning, tool calling, temperature control
External benchmark references
| Benchmark | Score | Metric | Date |
|---|---|---|---|
| SWE-Bench Pro | 59.5 | resolve rate | 2026-06-30 |
| SWE-Bench Multilingual | 77.3 | resolve rate | 2026-06-30 |
| Terminal-Bench | 70.8 | success rate | 2026-06-30 |
| GPQA Diamond | 88.9 | accuracy | 2026-06-30 |
Best for
- Chat
Strengths & Weaknesses
Strengths
- Long context window
- Reasoning mode listed
- Tool calling support
- Live API verification available
Watch outs
- Vision support is not listed
Pricing
LongCat-2.0 pricing per 1M tokens
Input $0 per 1M tokens
Output $0 per 1M tokens
Free access Available OpenCode Zen
Availability
LongCat-2.0 availability by provider
We only found this LongCat-2.0 listing on OpenCode Zen in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | LongCat-2.0 | Free tier | 1.0M | Native | Varies |
Compare
LongCat-2.0 alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| big-pickle | OpenCode Zen | N/A | Free tier |
| DeepSeek V4 Flash | OpenCode Zen | 1.0M | Free tier |
| MiMo-V2.5 | OpenCode Zen | 1.0M | Free tier |
| Nemotron 3 Ultra 550B A55B | OpenCode Zen | 1.0M | Free tier |
| North Mini Code | OpenCode Zen | 256K | Free tier |
Typical Use Cases
LongCat-2.0 use cases
Chat
LongCat-2.0 is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
FAQ
LongCat-2.0 free API FAQ
Is LongCat-2.0 free to use?
LongCat-2.0 is listed with free API access on OpenCode Zen, subject to the provider's quota and account policy.
What is the LongCat-2.0 model ID?
The model ID shown in this catalog is longcat-2.0-free.
What context window does LongCat-2.0 support?
The listed context window is 1.0M tokens with up to 131K output tokens.
More about LongCat-2.0
Free LongCat-2.0 API.
For API keys, setup steps, and provider-level limits, see the OpenCode Zen provider page.