Models and pricing
Every model available through the LLM Gateway, with context windows and per-token pricing.
The gateway routes one model catalog across OpenAI, Anthropic, and open-weight
providers. Pass any ID below as model. An unknown ID returns 400.
Prices are USD per million tokens. Cache write and cache read apply to prompt caching; models without cache-write pricing still discount cached reads.
Query the live catalog at any time:
curl https://llm.clusterbase.dev/v1/models \
-H "Authorization: Bearer $CLUSTER_API_KEY"Each entry includes the context window, default output limit, supported reasoning levels, supported speeds, and the standard rate card.
Current models
| Model | Context | Input | Output | Cache write | Cache read |
|---|---|---|---|---|---|
gpt-5.6 | 1,050,000 | $5.00 | $30.00 | $6.25 | $0.50 |
gpt-5.6-sol | 1,050,000 | $5.00 | $30.00 | $6.25 | $0.50 |
gpt-5.6-terra | 1,050,000 | $2.00 | $12.00 | $2.50 | $0.20 |
gpt-5.6-luna | 1,050,000 | $0.20 | $1.20 | $0.25 | $0.02 |
claude-fable-5 | 1,000,000 | $10.00 | $50.00 | $12.50 | $1.00 |
claude-opus-5 | 1,000,000 | $5.00 | $25.00 | $6.25 | $0.50 |
claude-sonnet-5 | 1,000,000 | $2.00 | $10.00 | $2.50 | $0.20 |
claude-haiku-4-5 | 200,000 | $1.00 | $5.00 | $1.25 | $0.10 |
kimi-k3 | 1,048,576 | $3.00 | $15.00 | — | $0.30 |
qwen3p7-plus | 262,144 | $0.40 | $1.60 | — | $0.08 |
Aliases
Two product aliases track our recommended defaults, so you get model upgrades without a code change:
| Alias | Currently routes to |
|---|---|
chat-model-smart | gpt-5.6-terra |
chat-model-fast | gpt-5.6-luna |
Aliases run without reasoning; a request that sets reasoning_effort on an
alias returns 400. Use a concrete model ID when you need reasoning control.
Fast mode
GPT-5.6 family models accept "speed": "fast" for lower-latency inference.
Fast requests bill at twice the standard rate. All other models run at
standard speed only; check supported_speeds in /v1/models.
Long-context pricing
For the GPT-5.6 family, a request whose input exceeds 272,000 tokens bills the whole request at multiplied rates: input at 2× and output at 1.5×.
Reasoning
Most models accept reasoning_effort (for example low, medium, high).
The accepted levels differ per model — read reasoning_levels from
/v1/models. claude-haiku-4-5 does not support reasoning. Reasoning output
is only emitted on streaming requests.
Deprecated models
These IDs still resolve but are scheduled for removal. Migrate to a current model.
| Model | Input | Output | Replacement |
|---|---|---|---|
gpt-5.5 | $5.00 | $30.00 | gpt-5.6 |
gpt-5.4 | $2.50 | $15.00 | gpt-5.6-terra |
gpt-5.2 | $1.75 | $14.00 | gpt-5.6-luna |
claude-opus-4-8 | $5.00 | $25.00 | claude-opus-5 |
claude-opus-4-7 | $5.00 | $25.00 | claude-opus-5 |
claude-sonnet-4-6 | $3.00 | $15.00 | claude-sonnet-5 |
/v1/models marks these with "deprecated": true.