Model Matrix and Selection Guide
Goal: help users choose the right model without guessing.
1. Quick choice
| Task | Recommended model | Reason |
|---|---|---|
| GPT default | gpt-5.4 | Balanced capability and stability |
| GPT lightweight | gpt-5.4-mini | Fast and suitable for simple tasks |
| GPT high quality | gpt-5.5 | Complex reasoning, long documents, code review |
| Claude default coding | claude-sonnet-4-6 | Balanced for coding, repo reading, and tool use |
| Claude deep reasoning | claude-opus-4-7 | Complex design and deep analysis |
| Claude fast tasks | claude-haiku-4-5 | Quick Q&A, summaries, classification |
2. GPT series
| Model | Recommended scenarios | Interface |
|---|---|---|
gpt-5.4 | Default, coding, writing, business Q&A | OpenAI-compatible /v1 |
gpt-5.4-mini | Lightweight automation, cost-sensitive batch tasks | OpenAI-compatible /v1 |
gpt-5.5 | High-quality output, complex reasoning, code review | OpenAI-compatible /v1 |
3. Claude series
| Model | Recommended scenarios | Interface |
|---|---|---|
claude-sonnet-4-6 | Default, Claude Code, coding, repo reading | Anthropic-compatible |
claude-opus-4-7 | Deep design, complex reasoning | Anthropic-compatible |
claude-opus-4-6 | High-quality text and rigorous analysis | Anthropic-compatible |
claude-sonnet-4-5 | Coding and general tasks | Anthropic-compatible |
claude-haiku-4-5 | Fast response, summary, simple classification | Anthropic-compatible |
4. Selection principles
- If unsure, use
gpt-5.4for GPT andclaude-sonnet-4-6for Claude. - For low latency or cost-sensitive jobs, choose mini / haiku.
- For code review, architecture, and long-context analysis, choose higher-end models.
- Always copy the exact model ID.
5. Base URL reference
| Series | Base URL |
|---|---|
| GPT | https://api.synterolink.com/v1 |
| Claude Code | https://api.synterolink.com |
| Claude OpenAI-compatible fallback | https://api.synterolink.com/v1 |