Langfuse vs Runware
A detailed comparison to help you choose between Langfuse and Runware.
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How to choose
Neither tool has user reviews on ToolSpotter yet, so we don't pick a winner. Compare them on what they're built for: Langfuse — Engineering teams running LLM apps or agents in production who want framework-agnostic tracing and evaluation with either a cheap managed cloud or a free self-hosted stack.; Runware — Engineering teams shipping media generation in production who want one API for image, video, audio, 3D and text at published per-request prices they can forecast..
Langfuse Open-source LLM observability and evaluation | Runware Generate media instantly with cost-effective API | |
|---|---|---|
| Rating | 4.3 (1 review) | 4.3 (1 review) |
| Pricing Model | freemium | usage-based |
| Starting Price | Free tier available | From $10/mo |
| Best For | Engineering teams running LLM apps or agents in production who want framework-agnostic tracing and evaluation with either a cheap managed cloud or a free self-hosted stack. | Engineering teams shipping media generation in production who want one API for image, video, audio, 3D and text at published per-request prices they can forecast. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tieropen sourceapi access | api access |
| Visit Langfuse → | Visit Runware → |
Langfuse
Pros
- + MIT-licensed core with free, unrestricted self-hosting — only named enterprise features like audit logs and SCIM need a licence key
- + A 5-seat team at 100k traces runs roughly $69/month versus about $420/month for the main closed alternative (Panoply's independent estimate, consistent with my bills)
- + OpenTelemetry-native tracing across OpenAI SDK, LangChain, LlamaIndex, Pydantic AI, Vercel AI SDK, CrewAI and raw OTLP
- + Graduated usage pricing is transparent and cheap: worked examples on the pricing page match my own invoices (200k units on Core = $37/month)
- + Dataset-backed evaluation with the langfuse/experiment-action GitHub step let me gate prompt changes in CI on a real test set
Cons
- - v3 self-hosting needs Postgres, ClickHouse, Redis and S3 where v2 ran on one container — a four-service system to operate
- - Heavy agent traces render slowly in the UI (issue threads #10391 and #9933 match the multi-second loads I measured)
- - Online evaluations score a sample of traffic rather than everything, so rare failure modes can go unscored
- - UI-configured evaluators cannot be triggered programmatically for scheduled pipelines in my setup
- - Owned by ClickHouse, Inc. since January 2026 — licence unchanged so far, but the vendor-independence profile shifted
Runware
Pros
- + Every API response includes the exact cost per task — in my batch tests the billed figures matched my hand calculations from the published rate sheet to the cent
- + Public rate sheet with 300+ priced models: FLUX 3 Video at $0.17/sec 720p and video from $0.14/generation undercut the vendor's named competitors verifiably
- + One request array mixes image, video, text and utility tasks; sync delivery mode returns fast jobs in a single round trip
- + Only successful requests are billed, rate-limited calls don't count, and $2 in free credits lets you verify pricing before committing
- + WebSocket transport carried concurrent multi-task batches over one socket in my tests without queue pileups
Cons
- - Developer-only: Playground for estimation, but no consumer editor, templates or brand tooling
- - Savings percentages ('up to 93% cheaper') are vendor-computed against vendor-chosen market rates — the rate sheet is real, the framing is marketing
- - Community registry models (400K+ entries) have no public pricing, so cost planning only works against the 300+ priced models
- - Closed-source partner models run on third-party infrastructure, which lengthens the privacy chain for sensitive workloads
- - Seed-stage company with fast-moving pricing and model availability; no published uptime SLA on self-serve tiers that I could find
Frequently Asked Questions
Which is better, Langfuse or Runware?▼
It depends on your specific needs — neither tool has user reviews on ToolSpotter yet, so we don't rank one above the other. Langfuse is best for: Engineering teams running LLM apps or agents in production who want framework-agnostic tracing and evaluation with either a cheap managed cloud or a free self-hosted stack.. Runware is best for: Engineering teams shipping media generation in production who want one API for image, video, audio, 3D and text at published per-request prices they can forecast..
What is the difference between Langfuse and Runware?▼
Langfuse: Langfuse is open-source observability for LLM applications, tracing calls, running evaluations and tracking cost and latency in production. Runware: Runware serves image, video and language models through one API on its own GPU infrastructure, priced by usage.
Is Langfuse or Runware more affordable?▼
Langfuse starts at €0/mo, Runware starts at €10/mo. Check the comparison table above for current pricing.
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