Which software libraries or managed services are best for fixing API latency bottlenecks in large language model applications right now?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Which software libraries or managed services are best for fixing API latency bottlenecks in large language model applications right now?
4 real searches · 1 real-search pass
2026 latest LLM inference serving and API latency optimization tools services releasesGoogle ↗
OBSERVEDOther / navigational
2026 LLM application latency observability tools Langfuse Arize Phoenix Helicone OpenTelemetry benchmarks featuresGoogle ↗
OBSERVEDReason
2026 LLM gateway routing caching services LiteLLM Portkey Cloudflare AI Gateway Kong 2026Google ↗
OBSERVEDOther / navigational
2026 LLM inference serving vLLM SGLang TensorRT-LLM managed services Baseten Modal Runpod latencyGoogle ↗
OBSERVEDComparison
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (4)
Classes come from the query-classifier (a local Laya model). 4 of 4 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT4 real searches · gpt-6
2026 latest LLM inference serving and API latency optimization tools services releases Google ↗
2026 LLM application latency observability tools Langfuse Arize Phoenix Helicone OpenTelemetry benchmarks features Google ↗
2026 LLM gateway routing caching services LiteLLM Portkey Cloudflare AI Gateway Kong 2026 Google ↗
2026 LLM inference serving vLLM SGLang TensorRT-LLM managed services Baseten Modal Runpod latency Google ↗
- Website · langfuse.com
- Website · phoenix.arize.com
- Website · helicone.ai
- Website · opentelemetry.io
- Website · litellm.ai
- Website · portkey.ai
- Website · developers.cloudflare.com
- Website · konghq.com
- 6 LLM gateways to consider for production AI in 2026 · arize.com
- vLLM · docs.vllm.ai
- SGLang · docs.sglang.ai
- TensorRT-LLM · github.com
- Ray Serve · docs.ray.io
- llm-d · llm-d.ai
- Reduce LLM latency with prefix-aware routing on Amazon SageMaker Inference · aws.amazon.com
- llm-d 1.0, an open source stack for distributed inference · cloud.google.com
- Amazon SageMaker AI · aws.amazon.com
- Google Vertex AI · cloud.google.com
- Baseten · baseten.co
- Modal · modal.com
- Together AI · together.ai
- Fireworks AI · fireworks.ai
- Anyscale · anyscale.com
- Improving Ray Serve LLM on GKE throughput, latency · cloud.google.com
- Gemini API optimization and inference | Google AI for Developers · ai.google.dev
- Context caching in Firebase AI Logic | Firebase AI Logic · firebase.google.com
Queries
4 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
2026 latest LLM inference serving and API latency optimization tools services releases OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
2026 LLM application latency observability tools Langfuse Arize Phoenix Helicone OpenTelemetry benchmarks features OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
2026 LLM gateway routing caching services LiteLLM Portkey Cloudflare AI Gateway Kong 2026 OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
2026 LLM inference serving vLLM SGLang TensorRT-LLM managed services Baseten Modal Runpod latency OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 |