Production and batch inference

Rent GPUs for LLM serving by context, concurrency and token cost.

Direct answer

Size LLM inference from weight precision, runtime overhead, KV cache, context length and simultaneous sequences. Compare time to first token, inter-token latency, p95 latency and cost per million accepted tokens before selecting RTX 5090, L40S, H100 or H200.

Reviewed by the GPURento infrastructure team · September 1, 2026

Transparent planning windows

Example rental cost on one RTX 5090.

These are compute rental windows, not predictions of job duration or performance. Replace the hours with a measured pilot and add storage in the calculator.

Adjust every assumption

One work session

$5.52

1 GPU × 8h · compute only

Forty-hour window

$27.60

1 GPU × 40h · compute only

One-hundred-twenty hours

$82.80

1 GPU × 120h · compute only

Key facts for Rent GPUs for LLM serving by context, concurrency and token cost.
Memory driversWeights + KV cacheContext and concurrency can dominate after weights.
Latency metricsTTFT · TPOT · p95Average latency hides queue and tail behavior.
Economic metric$ / 1M tokensHold model, quality and traffic shape constant.
Execution choiceDedicated or serverlessDepends on utilization and cold-start tolerance.
Best for
  • Private model endpoints
  • Batch generation and evaluation
  • Long-context or high-concurrency serving
  • Teams measuring latency and cost together
Not the best fit when
  • Traffic with no known quality or latency target
  • Models that have not been profiled at the intended precision
  • Sensitive data flows without a reviewed region and retention policy

Decision method

What to verify before you deploy capacity.

The content below separates published specifications, GPURento catalog references and decisions that still require a workload benchmark.

01

Fit the model and the traffic

Weight memory is only the starting point. Add quantization metadata, runtime workspace and KV cache for the desired context length, batch size and simultaneous sequences. Leave headroom so a brief peak does not cause an out-of-memory restart.

02

Choose dedicated or serverless from utilization

A dedicated GPU suits steady utilization and predictable warm latency. Serverless fits bursty traffic when scale-to-zero savings exceed cold-start and per-request overhead. Evaluate both with the same traffic trace.

  • Record time to first token
  • Record inter-token latency and p95
  • Divide total metered cost by accepted output tokens
03

Use the smallest GPU that meets the service level

A larger GPU is justified when it reduces queueing, raises concurrency or avoids multi-GPU sharding enough to lower total cost. Otherwise, a 24–48 GB card can be a better economic fit.

Questions

Clear answers, including the limits.

How much VRAM do I need for LLM inference?+

It depends on parameter count, precision, runtime, context and concurrency. Calculate model weights first, then add KV cache and at least a practical runtime margin.

Is serverless GPU cheaper than renting an instance?+

It can be for intermittent traffic because idle workers can scale down. A continuously busy endpoint may be cheaper and more predictable on a dedicated instance.

Which metric should I compare?+

Use cost per million accepted tokens together with time to first token and p95 latency. Throughput alone can hide poor user experience.

Deployment plan

Size the endpoint before requesting capacity.

Bring the model, precision, context, concurrency and latency target to the workspace configuration.