Helicone vs Respan: Which is Better in 2026?
A comprehensive comparison of Helicone and Respan covering features, pricing, use cases, and which tool is the right choice for your needs.
⚡ Quick Verdict
Choose Helicone if:
- →You need request logging and replay or cost and latency tracking
Choose Respan if:
- →You want more affordable paid plans (from $199/mo)
- →You need a broader feature set (7 features vs 5)
- →You need tracing, evaluations, prompt optimisation and an ai gateway in one platform or python and js/ts sdks plus native openai, vercel ai sdk, langchain, llamaindex and mastra integrations
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Helicone vs Respan: At a Glance
Pricing Comparison: Helicone vs Respan
Understanding the pricing differences between Helicone and Respan is crucial for making the right choice. Here's how their plans compare side by side.
Respan Pricing
💡 Pricing takeaway: Both Helicone and Respan offer free tiers, making it easy to try before you buy. Visit each tool's website for the latest pricing details.
Feature-by-Feature Comparison
Here's how every feature from Helicone and Respan stacks up.
What Makes Each Tool Unique
🔵 Unique to Helicone
Features available in Helicone but not in Respan:
- ✓Request logging and replay
- ✓Cost and latency tracking
- ✓Prompt versioning
- ✓A/B testing for prompts
- ✓User session tracking
🟣 Unique to Respan
Features available in Respan but not in Helicone:
- ✓Tracing, evaluations, prompt optimisation and an AI gateway in one platform
- ✓Python and JS/TS SDKs plus native OpenAI, Vercel AI SDK, LangChain, LlamaIndex and Mastra integrations
- ✓Gateway fronting OpenAI, Anthropic, OpenRouter, Groq, Fireworks, Together, Perplexity, Azure, Bedrock and Vertex
- ✓Agent tracing with cost and usage tracking
- ✓Published per-unit overage rates for logs and scores
- ✓PII masking, log omission and SOC 2 reporting
- ✓Generous free tier at 100k logs and 1k scores
Use Case Recommendations
Best for: Helicone
Open-source LLM observability platform. Helicone logs all your LLM requests, tracks costs and latency, runs prompt experiments, and detects issues — with a single line of code added to your existing OpenAI or Anthropic calls.
Ideal use cases:
- •Teams or individuals who need request logging and replay
- •Teams or individuals who need cost and latency tracking
- •Teams or individuals who need prompt versioning
- •Teams or individuals who need a/b testing for prompts
- •Anyone focused on LLM observability workflows
- •Anyone focused on prompt monitoring workflows
Best for: Respan
Respan is an LLM engineering platform that unifies four things teams usually buy separately: observability and tracing, evaluations, prompt optimisation, and an AI gateway. The workflow it describes runs trace, evaluate, optimise, deploy, monitor — so the same platform that records what your agent did also scores it and feeds the result back into the prompt. The integration surface is unusually wide for an independent tool: Python and JS/TS SDKs, plus native support for the OpenAI SDK, OpenAI Agents SDK, Vercel AI SDK, Mastra, LangChain, LlamaIndex, Google GenAI, Mem0, Cognee, AssemblyAI, Linkup and PostHog. On the model side the Respan Gateway fronts OpenAI, Anthropic, OpenRouter, Groq, Fireworks, Together AI, Perplexity, Azure OpenAI, AWS Bedrock and Google Vertex, so provider routing is part of the platform rather than a separate proxy. Metering is transparent and per-unit: logs and evaluation scores are the billed dimensions, with published overage rates of $8 per 100k additional logs and $1 per 1k additional scores, and additional seats at $15 per member on the Team plan. Enterprise adds custom SLAs, a dedicated support engineer and a HIPAA BAA, with PII masking and SOC 2 reporting; HIPAA compliance is a $249/month add-on.
Ideal use cases:
- •Teams or individuals who need tracing, evaluations, prompt optimisation and an ai gateway in one platform
- •Teams or individuals who need python and js/ts sdks plus native openai, vercel ai sdk, langchain, llamaindex and mastra integrations
- •Teams or individuals who need gateway fronting openai, anthropic, openrouter, groq, fireworks, together, perplexity, azure, bedrock and vertex
- •Teams or individuals who need agent tracing with cost and usage tracking
- •Anyone focused on llm-observability workflows
- •Anyone focused on evaluations workflows
🤖 Other AI Agent Infrastructure Tools to Consider
Helicone and Respan aren't the only options. Here are other popular tools in the same space:
SuperAGI
Open-source autonomous AI agent framework with visual dashboard — 14K GitHub stars
MetaGPT
Multi-agent AI framework simulating software teams — 45K GitHub stars, builds full apps from prompts
Cerebras
Fastest LLM inference powered by the Wafer Scale Engine.
Scale AI
AI data platform for training data and model evaluation.
Roboflow
End-to-end computer vision platform for developers.
Labelbox
Enterprise data labeling platform for ML training datasets.
Is one of these your tool?
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Frequently Asked Questions
Is Helicone better than Respan?
It depends on your needs. Helicone offers 5 key features including Request logging and replay and Cost and latency tracking, while Respan provides 7 features including Tracing, evaluations, prompt optimisation and an AI gateway in one platform and Python and JS/TS SDKs plus native OpenAI, Vercel AI SDK, LangChain, LlamaIndex and Mastra integrations. Helicone uses a freemium model with a free tier, while Respan is freemium with free access available. Choose based on which features and pricing model align with your requirements.
Is Helicone cheaper than Respan?
Helicone doesn't have standard paid plans, while Respan starts at $199/month. Both tools offer free tiers, so you can try each before committing. Always check the official websites for the most current pricing.
Can I use Helicone and Respan together?
Yes, many users combine Helicone and Respan in their workflow. Helicone excels at request logging and replay, while Respan shines with tracing, evaluations, prompt optimisation and an ai gateway in one platform. Using both allows you to leverage the strengths of each tool, though this means managing two subscriptions — though free tiers can help manage costs.
What's the main difference between Helicone and Respan?
While both are ai agent infrastructure tools, Helicone emphasizes request logging and replay, whereas Respan is known for tracing, evaluations, prompt optimisation and an ai gateway in one platform. The best choice depends on your specific workflow and feature priorities.
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