17 models, one endpoint, one bill.
One key, one OpenAI-compatible URL. All 17 run on our keys.
Or don’t pick one.
Nex 1 is Lobstack’s router. Send auto and it picks a model from the catalogue below, never above the tier your plan reaches.
It has no rate of its own; it costs whatever it routed to, which is on the receipt. How Nex routes →
curl https://www.lobstack.ai/api/gateway/v1/chat/completions \
-H "Authorization: Bearer $LOBSTACK_API_KEY" \
-d '{ "model": "auto", "messages": [...] }'What the Gateway serves
What you pay per million tokens on our keys, checked against each provider’s own page on 2026-09-08. A model marked “your key only” runs on your own provider key, and your provider bills it.
| Model | Model string | Provider | Tier | Context | $/M in | $/M out |
|---|---|---|---|---|---|---|
| GPT-5.6 Luna | gpt-5.6-luna | OpenAI | Nano | 1.05M | $0.250 | $1.50 |
| Gemini 3.1 Flash Lite | gemini-3.1-flash-lite | Nano | 1.05M | $0.313 | $1.88 | |
| Claude Haiku 4.5 | claude-haiku-4-5 | Anthropic | Small | 200K | $1.25 | $6.25 |
| Grok Build 0.1 | grok-build-0.1 | xAI | Small | 256K | $1.25 | $2.50 |
| DeepSeek V4 Flash | deepseek-v4-flash | DeepSeek | Standard | 1M | $0.338* | $1.38 |
| Gemini 3.8 Flash | gemini-3.8-flash | Standard | 1.05M | $0.938 | $4.69 | |
| Grok 4.3 | grok-4.3 | xAI | Standard | 1M | $1.56 | $3.13 |
| Claude Sonnet 5 | claude-sonnet-5 | Anthropic | Standard | 1M | $2.50 | $12.50 |
| Gemini 3.1 Pro | gemini-3.1-pro | Premium | 1.05M | $2.50 | $15.00 | |
| GPT-5.6 Terra | gpt-5.6-terra | OpenAI | Premium | 1.05M | $2.50 | $15.00 |
| Grok 4.6 | grok-4.6 | xAI | Premium | 500K | $2.50 | $7.50 |
| Grok 4.5 | grok-4.5 | xAI | Premium | 500K | $2.50 | $7.50 |
| DeepSeek V4 Pro | deepseek-v4-pro | DeepSeek | Flagship | 1M | $1.38* | $5.50 |
| GPT-5.6 Sol | gpt-5.6 | OpenAI | Flagship | 1.05M | $5.00 | $25.00 |
| Claude Opus 5 | claude-opus-5 | Anthropic | Flagship | 1M | $6.25 | $31.25 |
| Claude Fable 5.1 | claude-fable-5-1 | Anthropic | Flagship | 1M | $12.50 | $62.50 |
| GPT-6 Astra | gpt-6-astra | OpenAI | Flagship | 1.05M | $12.50 | $62.50 |
* This provider publishes no list price we could confirm on 2026-09-08, so the rate is our best reading of it.
web-search is priced per search: $0.00625 ($6.25 per 1,000).
How a rate becomes a bill
Tokens in times the input rate, tokens out times the output rate, on the model the response names.
The arithmetic, line by line →That cost draws down the model spend included in your plan, and you top up when it runs out.
Allowance, ceilings and top-ups →On paid plans, calls on your own provider keys skip these rates and your allowance; your provider bills the tokens.
Provider keys →