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-6-astra | 1,050,000 | $10.00 | $50.00 | $12.50 | $1.00 |
gpt-5.6 | 1,050,000 | $4.00 | $20.00 | $5.00 | $0.40 |
gpt-5.6-sol | 1,050,000 | $4.00 | $20.00 | $5.00 | $0.40 |
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 | 1,000,000 | $10.00 | $50.00 | $12.50 | $0.25 |
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 |
deepseek-v4-pro-0813 | 1,048,576 | $1.32 | $3.96 | — | $0.044 |
qwen3p8-max | 262,144 | $2.00 | $6.00 | — | $0.25 |
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-6 Astra and the GPT-5.6 family 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 GPT-6 Astra and 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.
GPT-6 Astra (gpt-6-astra) accepts low, medium, high, xhigh, and
max; omitted effort defaults to medium. It does not support temperature
or top_p — requests that set either are rejected with 400.
claude-fable-5-1 also accepts low, medium, high, xhigh, and max,
with adaptive thinking always on; omitted effort defaults to high.
It is available for Chat and the Build CLI but is not
admitted for Cluster Bot (Computer) sessions.
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.