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, xAI, 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-6.1-sol | 1,050,000 | $2.00 | $10.00 | $2.50 | $0.10 |
gpt-6-luna | 1,050,000 | $0.10 | $0.50 | $0.125 | $0.01 |
claude-fable-5-1 | 1,000,000 | $10.00 | $50.00 | $12.50 | $0.25 |
claude-opus-5-5 | 1,000,000 | $4.00 | $20.00 | $5.00 | $0.20 |
claude-sonnet-5-5 | 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 |
deepseek-v4.1-flash | 1,048,576 | $0.22 | $0.66 | — | $0.007 |
qwen3p8-max | 262,144 | $2.00 | $6.00 | — | $0.25 |
grok-4.7 | 500,000 | $2.00 | $6.00 | — | $0.50 |
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-6.1-sol |
chat-model-fast | gpt-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, GPT-6.1 Sol, GPT-6 Luna, and kimi-k3 accept "speed": "fast"
for lower-latency inference. Fast requests bill at twice the standard rate
(1.5× for kimi-k3). All other current models run at standard speed only;
check supported_speeds in /v1/models.
Long-context pricing
For GPT-6 Astra, GPT-6.1 Sol, and GPT-6 Luna, a request whose input exceeds 272,000 tokens bills the whole request at multiplied rates: input at 2× and output at 1.5×.
For grok-4.7, a request whose input reaches 200,000 tokens bills the whole
request at 2× input, cached input, and output.
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) and GPT-6.1 Sol (gpt-6.1-sol) accept low,
medium, high, xhigh, and max; omitted effort defaults to medium.
They do not support temperature or top_p — requests that set either are
rejected with 400.
GPT-6 Luna (gpt-6-luna) accepts none, low, medium, high, xhigh,
and max; omitted effort defaults to medium. It accepts temperature and
top_p only with "reasoning_effort": "none".
claude-fable-5-1, claude-opus-5-5, and claude-sonnet-5-5 also accept
low, medium, high, xhigh, and max, with adaptive thinking always on;
omitted effort defaults to medium for claude-opus-5-5 and high for the
other two. They reject requests that set both temperature and top_p, force
tool_choice, or end with an assistant message (prefill).
Cluster Bot (Computer) sessions admit only gpt-6.1-sol and gpt-6-luna;
every other model, including the aliases, is rejected with 400.
grok-4.7 accepts low, medium, high, and xhigh; omitted effort
defaults to high. It accepts image attachments.
Deprecated models
These IDs still resolve but are scheduled for removal. Migrate to a current model.
| Model | Input | Output | Replacement |
|---|---|---|---|
gpt-5.6 | $4.00 | $20.00 | gpt-6.1-sol |
gpt-5.6-sol | $4.00 | $20.00 | gpt-6.1-sol |
gpt-5.6-terra | $2.00 | $12.00 | gpt-6.1-sol |
gpt-5.6-luna | $0.20 | $1.20 | gpt-6-luna |
gpt-5.5 | $5.00 | $30.00 | gpt-6.1-sol |
gpt-5.4 | $2.50 | $15.00 | gpt-6.1-sol |
gpt-5.2 | $1.75 | $14.00 | gpt-6-luna |
claude-opus-5 | $5.00 | $25.00 | claude-opus-5-5 |
claude-opus-4-8 | $5.00 | $25.00 | claude-opus-5-5 |
claude-opus-4-7 | $5.00 | $25.00 | claude-opus-5-5 |
claude-sonnet-5 | $2.00 | $10.00 | claude-sonnet-5-5 |
claude-sonnet-4-6 | $3.00 | $15.00 | claude-sonnet-5-5 |
claude-fable-5 | $10.00 | $50.00 | claude-fable-5-1 |
/v1/models marks these with "deprecated": true.