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Comparison · ai-assistants

Flowise vs ONNX Runtime

A side-by-side editorial comparison of Flowise and ONNX Runtime — release velocity, themes, recent moves, and the top alternatives to consider.

Shared themes:security-hardening

Flowise vs ONNX Runtime: at a glance

FeatureFlowiseONNX Runtime
Sectorai-assistantsai-assistants
Velocity score2.57.5
Sparks · 30d02
Top themesagent-builder, multi-tenancy, security-hardening, mcpexecution-providers, plugin-architecture, cuda, webgpu
Last editorial update20d ago1d ago
WebsiteVisit →Visit →

What is Flowise?

Flowise spent 2026 paying down the security debt of a multi-tenant agent builder

Flowise ships from GitHub on a roughly monthly minor cadence, and since 3.1.0 in March the release notes read less like a feature log than a hardening program. 3.1.2 and 3.1.4 are dominated by cross-workspace authorization fixes, tenant validation, credential-leak repairs and sanitization work, much of it filed by Workday-affiliated contributors. The one clear capability move in the window is 3.1.3 turning a chatflow into an MCP server.

Read the full Flowise trajectory →

What is ONNX Runtime?

ONNX Runtime is dismantling itself into plug-ins — CUDA is now the one that ships separately.

ONNX Runtime is running two release tracks at once: the numbered core releases (1.25 through 1.29) and a growing set of separately versioned plug-in execution providers. WebGPU broke out first in May, and CUDA has now followed with its own 0.1.0. The core releases in between are dominated by security hardening, opset upgrades and deprecation notices rather than new capability.

Read the full ONNX Runtime trajectory →

Flowise vs ONNX Runtime: editorial side-by-side

F
Flowise
AI-ASSISTANTS
2.5

Flowise spent 2026 paying down the security debt of a multi-tenant agent builder

◆ Current state

Flowise ships from GitHub on a roughly monthly minor cadence, and since 3.1.0 in March the release notes read less like a feature log than a hardening program. 3.1.2 and 3.1.4 are dominated by cross-workspace authorization fixes, tenant validation, credential-leak repairs and sanitization work, much of it filed by Workday-affiliated contributors. The one clear capability move in the window is 3.1.3 turning a chatflow into an MCP server.

◆ Where it's heading

The project is converting from a self-hosted hobby flow builder into something a large organization can run with multiple tenants on one instance. 3.1.0 made that explicit by enabling HTTP security checks and an internal-address deny list by default — a breaking change accepted in exchange for SSRF protection. Feature work continues on AgentFlow (rich-text content editing, form input filtering, canvas actions), but it is now secondary to isolation guarantees.

◆ Prediction

The concentration of workspace-boundary fixes suggests the next releases keep auditing the same seam — expect more tenant-scoped endpoint checks and MCP configuration controls rather than a new authoring surface.

O
ONNX Runtime
AI-ASSISTANTS
7.5

ONNX Runtime is dismantling itself into plug-ins — CUDA is now the one that ships separately.

◆ Current state

ONNX Runtime is running two release tracks at once: the numbered core releases (1.25 through 1.29) and a growing set of separately versioned plug-in execution providers. WebGPU broke out first in May, and CUDA has now followed with its own 0.1.0. The core releases in between are dominated by security hardening, opset upgrades and deprecation notices rather than new capability.

◆ Where it's heading

The direction is a smaller core binary with accelerators attached at runtime. The 1.26 notes stated the intent outright — CUDA moving to a dedicated execution provider rather than a package shipped from core — and 0.1.0 delivers it, with version-gated callbacks maintaining compatibility back to 1.24.4. Alongside that, the deprecation list keeps growing: CUDA 11, then CUDA 12, WebGL and JSEP, ArmNN, the duktape WGSL generator. Web inference is being consolidated onto WebGPU and native inference onto plug-ins.

◆ Prediction

Expect the plug-in EPs to take over release cadence from the core, with CUDA 12 removed in 1.27 as announced and further backends following WebGPU and CUDA out of the main binary.

Alternatives to Flowise and ONNX Runtime

Other ai-assistants products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Flowise or ONNX Runtime.

See all Flowise alternatives → · See all ONNX Runtime alternatives →

Recent activity from Flowise and ONNX Runtime

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoONNX RuntimeCUDA becomes a standalone plug-in execution provider
  2. 7d agoONNX RuntimeONNX Runtime 1.29 deprecates WebGL and JSEP, adds POSIX telemetry
  3. 7d agoONNX RuntimeONNX Runtime 1.26 adds RISC-V vector support and .ort memory mapping
  4. 20d agoONNX RuntimeWebGPU plug-in: FlashAttention fusions, Qwen3 and Gemma 4 paths
  5. 20d agoFlowise3.1.4 tightens tenant isolation and gates MCP stdio commands
  6. 25d agoONNX RuntimeONNX 1.22 upgrade, slimmer CUDA footprint, experimental C API
  7. 1mo agoONNX RuntimePatch release: QMoE batch-1 decode fast path and fixes
  8. 1mo agoFlowise3.1.3 turns any chatflow into an MCP server
  9. 4mo agoFlowise3.1.2 fixes credential leak, CORS wildcard and cross-workspace disclosure
  10. 4mo agoFlowiseflowise-ui tagged 3.1.2 alongside the main release
  11. 4mo agoFlowiseflowise-components tagged 3.1.2 alongside the main release
  12. 4mo agoFlowise3.1.1 adds an AgentFlow rich text editor and Weaviate v3 client

Frequently asked questions

What is the difference between Flowise and ONNX Runtime?

Both compete on the same themes — security-hardening — within ai-assistants. ONNX Runtime is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Flowise better than ONNX Runtime?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ONNX Runtime is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other ai-assistants products to evaluate alongside.

What are the best alternatives to Flowise?

Top Flowise alternatives in ai-assistants are ranked by recent ship velocity. Browse the "Flowise alternatives" section above for the current picks, or visit /alternatives/flowise for the full list with editorial commentary on each.

What are the best alternatives to ONNX Runtime?

Top ONNX Runtime alternatives in ai-assistants are ranked by recent ship velocity. Browse the "ONNX Runtime alternatives" section above for the current picks, or visit /alternatives/onnx-runtime for the full list with editorial commentary on each.