AgentOps vs Letta (2026): which should you pick?
As of Nov 12, 2026, AgentOps grades higher than Letta: 2.2 against 2.0 out of 4.0.
Checked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA
AgentOps grades higher on ease of use. They get the same grade on value for money, the free plan, features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
AgentOps
Tracing, debugging and cost tracking for AI agents
Letta
Stateful agents with long-term memory, from the MemGPT team
Which one is for you
Pick AgentOps if
- Fits if you build agents in Python or TypeScript and want runs traced and replayed
- Works for a developer who wants LLM spend tracked across 400+ models
Look elsewhere if
- Tight if you run real traffic: Basic stops at 5,000 events
- Watch out: Pro is pay as you go and the per-event rate sits behind a pricing calculator
- Not for you if you need self-hosting, custom SSO or SOC-2 listings, which are Enterprise with no published price
- Watch out: the /pricing address returns a 404, so prices are on the home page
Pick Letta if
- Fits if you are a developer who wants agents that keep their memory between runs
- Works for people who already pay for a coding plan and can bring that key
Look elsewhere if
- Tight if you stay free, because there is no included model usage and 3 agents is the cap
- Pricey if you code heavily, as the pricing page says $100 to $200 a month or more of usage
- Watch out: server tool time is billed at $0.00015 a second against your credits
- Watch out: more than one person needs Teams Pro, since Pro covers a single user
How we grade them
| 2.2GPAAgentOpsFair | 2.0GPALettaFair | |
|---|---|---|
| Value for money | CPro is $40 a month pay as you go, just above the $37 where the dearer quarter of AI agent tools starts. | CPro is $20 a month with $20 of credits, around the category's $21 middle. Teams Pro is $20 a seat. |
| Free plan and trial | CA free Basic plan with 5,000 events, which a real project will outgrow. | CFree covers 3 stateful agents but no model usage, so you bring your own keys or buy credits. |
| Features | CTracing, replay, cost tracking for 400+ models and an audit trail, but self-hosting, SSO and compliance listings are Enterprise. | CPersistent memory, a coding CLI, an SDK, and Slack and GitHub channels. Memory repositories are capped at 5 MiB on Free, and web search and tools spend credits. |
| Ease of use | CNo store rating on record. A short SDK setup in Python or TypeScript, so it takes code in your project. | DNo store rating, and the main route is an npm-installed CLI and SDK, so you work from a command line. |
| Platforms and integrations | BWeb dashboard with Python and TypeScript SDKs, 8 framework integrations and a GitHub project. | BWeb plus a CLI and SDK, with Slack, GitHub, Telegram, Discord, WhatsApp and Signal channels. |
| Best for | tracing and cost tracking for AI agents | developers building agents that remember across sessions |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: AgentOps and Letta. How we grade
Price against what you get
AgentOps starts at $40 a month and scores 2.3 out of 4 on features, ease of use and platforms. Letta starts at $20 a month and scores 2.0.
AgentOps scores higher, and starts $20 a month higher: the question is whether the extra is worth that to you. Of the other AI agents on the chart, 29 score higher than AgentOps for less, and 26 score higher than Letta for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- AgentOps also covers reports and dashboards.
- Letta also covers workflow automation.
At a glance
| AgentOps | Letta | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $40 per month, pay as you go | $20 per month |
| Free plan | Basic plan: free up to 5,000 events, with the agent-agnostic SDK, LLM cost tracking for 400+ LLMs and replay analytics. | Up to 3 stateful agents and 5 MiB per memory repository; bring your own API keys or an external coding plan. |
| Free trial | None listed | None listed |
| Web | ||
| Made by | AgentOps | Letta, Inc. |
| Price read from | agentops.ai | docs.letta.com |
| Checked | Nov 12, 2026 | Nov 12, 2026 |
Worth knowing
AgentOps
- The Basic plan stops at 5,000 events.
- Pro is billed pay as you go; the homepage points to a pricing calculator rather than listing the per-event rate.
- Self-hosting, custom SSO and the compliance listings are on the Enterprise plan, which has no published price.
- The /pricing address on the site returns a 404; the prices are on the homepage.
Letta
- The free plan has no included model usage; you bring your own keys or buy credits.
- Credits are spent by model usage at provider-based rates, and the pricing page says heavy coding use can run $100 to $200 a month or more.
- Server-side tool time is billed at $0.00015 per second against credits, and web search and fetch tools also cost credits.
- Adding members to an organization needs Teams Pro; Pro covers a single user.
Key features
AgentOps
- Agent tracing
- LLM calls, tool use and multi-agent interactions are recorded as traces and shown visually in a dashboard.
- Time-travel debugging
- Past agent runs can be rewound and replayed to a specific point.
- Cost and token tracking
- Token counts and spend are tracked across agents, with pricing for more than 400 LLMs.
- Framework integrations
- The docs list integrations with CrewAI, AutoGen, LangChain, OpenAI, Anthropic and other frameworks and model providers.
- Audit trail
- Logs, errors and prompt-injection attempts are kept as a data trail from prototype to production.
- Python and TypeScript SDKs
- The Python SDK is set up with an install and an init call, and a TypeScript and JavaScript SDK is also available.
Letta
- Persistent agent memory
- Agents are stateful: they carry memory across sessions, and memory repositories are versioned in git so changes can be tracked.
- Letta Code CLI
- An open-source harness installed with npm for coding agents, personal assistants and agents that work on local files, with skills and schedules.
- Agent SDK and app server
- Developers can embed stateful agents in their own applications, with a self-hosting option and a protocol for external tools.
- Channels and cloud agents
- Cloud-hosted agents connect to Slack and a GitHub integration; the channels guide also lists Telegram, Discord, WhatsApp and Signal.
- Bring your own keys
- All plans accept your own model API keys, and usage then goes through your provider account instead of using Letta credits.
Plans
AgentOps
Basic$0
Free up to 5,000 events, with LLM cost tracking for 400+ LLMs and replay analytics.
Pro$40
per month, pay as you go
Everything in Basic plus unlimited events and log retention, session and event export, role-based permissions and dedicated Slack and email support.
EnterpriseCustom
Everything in Pro plus SLA, Slack Connect, custom SSO, on-premise and self-hosted deployment, custom data retention and SOC-2, HIPAA and NIST AI RMF.
Letta
Free$0
per month
Up to 3 stateful agents; no included model usage, so bring your own keys or buy credits.
Pro$20
per month
Includes $20 of credits a month for any model and remote sandboxes, up to 20 stateful agents.
Teams Pro$20
per seat / month
Everything in Pro, plus teammates in an organization, shared agents and access control.
EnterpriseCustom
Volume-based pricing with role-based access control, SAML/OIDC SSO and dedicated support.
Common questions
Which is cheaper, AgentOps or Letta?
As of Nov 12, 2026, Letta is cheaper to start with: $20 a month, against $40 a month for AgentOps. AgentOps starts at $40 per month, pay as you go, and Letta starts at $20 per month.
Which has a free plan, AgentOps or Letta?
As of Nov 12, 2026, both AgentOps and Letta have a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.