Alternatives
10 best EvalPlus alternatives
Tools that cover the same task as EvalPlus (code), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- EvalPlus starts at
- Not listed
- Free plan
- Free plan
- API
- API unknown
- 01
Letta
Letta is an AI research lab and product company building stateful agents whose memory and capabilities evolve over time, originating from MemGPT research. It ships Letta Agent software, a CLI, and cloud plans for individuals, teams, and API developers.
Best for: Engineers and teams building long-horizon coding or workflow agents that need durable memory and sandboxed execution.
- 02
Langfuse
Langfuse is an open-source LLM engineering platform for tracing, evaluating, and improving AI agents with collaborative debugging and metrics. Langfuse Cloud offers hosted Hobby, Core, and Pro tiers metered in observability units.
Best for: AI engineers who need open-source-friendly observability and eval workflows without building tooling in-house.
- 03
ByteAsk
ByteAsk is a terminal-based AI coding agent for C and C++ that edits repositories and verifies work with compilers, sanitizers, debuggers, and tests. It integrates LLVM, GCC, gdb, Valgrind, CMake, and related tooling with grounded standards and datasheet excerpts.
Best for: C and C++ engineers who want an agent that proves changes compile, pass tests, and survive sanitizer and debugger checks.
- 04
dlvr.sh
dlvr.sh is a developer-first temporary file sharing service positioned as a WeTransfer alternative for AI agents and automation. It offers short links, expiry controls, passwords, download limits, and API, MCP, and CLI access for delivering large files without long-term storage contracts.
Best for: Developers, agencies, and agent workflows that need expiring, password-protected file handoffs with programmatic uploads.
- 05
AI Native Dev Landscape
Tessl is an agent enablement platform for managing skills, plugins, reviews, and evals so teams can standardize how coding agents work.
Best for: Engineering teams adopting agentic development who need governed skills, reviews, and shared context.
- 06
IcePanel
IcePanel is a collaborative C4-style software architecture modeling tool. Engineering and product teams map systems, maintain interactive diagrams, plan designs, and align on technical decisions with integrations and a documented REST API.
Best for: Software architects, platform teams, and product engineers who need long-lived system models and shareable architecture diagrams.
- 07
Dalus
Dalus is an AI-native model-based systems engineering platform for hardware teams. It unifies requirements, architecture, analysis, and verification in a collaborative environment aimed at aerospace, defense, robotics, automotive, and energy programs.
Best for: Systems engineers and hardware program teams that need MBSE with AI assistance and shared models.
- 08
Mem0
Mem0 provides persistent memory infrastructure for AI agents and applications so context survives across sessions, users, and agents. The platform offers hosted plans with SDK integration plus open-source options for developers building production agents that need durable recall.
Best for: Agent builders and app teams that need hosted memory layers with defined add and retrieval quotas.
- 09
Maritime
Maritime hosts persistent AI agents, each in its own Firecracker micro-VM with durable disk. Agents sleep when idle, wake in about a second, and scale from a free tier to paid plans with configurable RAM, SSD, and always-on options.
Best for: Developers shipping user-specific or long-running agents who need isolated VMs with fast wake times.
- 10
GraphDev
GraphDev is a modern toolkit for GraphQL development that combines schema exploration, collections, shared links, and GraphDev AI assistance. Teams use it to document APIs, collaborate on queries, and host shared GraphQL workspaces with tiered limits on links and collections.
Best for: GraphQL engineers and platform teams who need collaborative schema browsing, shareable query links, and AI help inside a dedicated dev toolkit.
EvalPlus alternatives: common questions
What is the best free alternative to EvalPlus?
Letta has an ongoing free plan. Free plan supports up to three stateful agents with BYOK models including supported external coding plans Free plans change, so check the vendor before relying on one.
What is the cheapest EvalPlus alternative?
dlvr.sh has the lowest listed starting price at $8/mo.
Which EvalPlus alternatives have an API?
Letta, Langfuse, ByteAsk, dlvr.sh, IcePanel mention API or developer access.