OpenAI Agents SDK vs Google Agent Development Kit (ADK) vs Pydantic AI vs LangGraph
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
OpenAI Agents SDK
OpenAI's small-footprint framework for agents, handoffs and guardrails...
Visit
|
Google Agent Development Kit (ADK)
Google's open-source, code-first framework for multi-agent AI
Visit
|
Pydantic AI
Type-safe Python agent framework from the Pydantic team
Visit
|
LangGraph
Open-source graph framework for durable, stateful AI agents
Visit
|
|
|---|---|---|---|---|
| RECATOOLS Score | 8 / 10 | 7.8 / 10 | 8.2 / 10 | 8.3 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Open Source | Open Source | Open Source | Open Source |
| Free tier | Free and open source (MIT) in Python and JavaScript/TypeScript; model API usage is billed separately by OpenAI or another provider | Apache-2.0 framework free in all five languages. Agent Runtime includes 50 vCPU-hours and 100 GiB-hours of memory free per month | Free and open source (MIT) Python framework; Logfire Personal plan free up to 10M telemetry records/month | LangGraph library is MIT-licensed and free; LangSmith Developer plan: 1 seat, 5k base traces a month, community support (no managed deployment) |
| Paid from | — | Framework free, Agent Runtime hosting $0.085 per vCPU-hour after 50 free hours a month | Framework free, optional Logfire observability from $49/month | $39/seat/mo (LangSmith Plus, includes deployment) |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✓ | ✓ | ✓ | ✓ |
| Free to use | ✓ | ✓ | ✓ | ✓ |
| Users | — | — | — | — |
| Founded | 2025 | 2025 | 2024 | 2024 |
| Maker | OpenAI | Google (Alphabet) | Pydantic Services Inc. | LangChain |
| Verdict | The Agents SDK is the straightforward choice for teams building on OpenAI models in code: a small set of primitives, built-in tracing, and a runtime that manages turns, tools, handoffs and sessions so you do not write th... |
ADK is Google's most serious agent framework: five language SDKs, a built-in ADK Web dev UI, evaluation tooling and, in ADK 2.0, a graph-based workflow runtime that gives explicit control over multi-agent orchestration i... |
Pydantic AI brings the Pydantic team's typing discipline to agents: validated structured outputs, dependency injection for testing, a model-agnostic interface and durable execution on eight engines. Version 2 reorganised... |
LangGraph is the framework to reach for when an agent needs real control flow: explicit state, branching, loops, multi-agent hand-offs, checkpoints that survive failures and human approval steps, in Python or JavaScript,... |
| Full review → | Full review → | Directory listing → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.