JetBrains AI AssistantvsTabnine
Two coding tools, the same questions. Every answer comes from the official pages, with the date we checked. Nothing here is ranked.
last check 2026-10-11
JetBrains AI Assistant
by JetBrains
JetBrains AI Assistant is a plugin that adds AI chat, code completion and coding agents to JetBrains IDEs; a beginner might try it for code suggestions and questions about a project in IntelliJ IDEA or PyCharm.
Good for: Coding
All JetBrains AI Assistant factsTabnine
by Tricentis
Tabnine is an AI coding assistant for code editors and the terminal, now owned by Tricentis, whose current documentation describes enterprise plans; a beginner could use it for code completions and chat about a codebase if their organization provides access.
Good for: Coding
All Tabnine factsWhere they differ
- AI modelsJetBrains AI Assistant: Claude Opus 5.5, Claude Sonnet 5.5, Claude Fable 5.1, Gemini 3.8 Flash, Gemini 3.7 Flash, GPT-6.1 Sol, GPT-6 Luna, GPT-6 SolTabnine: Claude 4.8 Opus, Claude 4.7 Opus, Claude 4.6 Sonnet, GPT-5.5, GPT-5.4, GPT-5.3 Codex, Gemini 3.5 Pro, Gemini 3.1 Pro
- How it runsJetBrains AI Assistant: IDE extensionTabnine: IDE extension, CLI
- AccountJetBrains AI Assistant: JetBrains Account needed to use a JetBrains AI plan; own API keys (BYOK) can be used without a JetBrains AI subscriptionTabnine: Tabnine user account required (sign up or join a Tabnine team)
Same answer, but for different plans or with different conditions: repository context. The table below shows the conditions.
Confirmed for only one of the two so far: free plan, where it is available. The table below shows which.
Same answer for both: code completion, platforms.
Plans and prices
As listed on each official pricing page, in the currency we were shown. No conversion, no rounding.
JetBrains AI Assistant
- AI Free Free plan$0.00 / month
- AI Trial (30 days of AI Pro) Time-limited trialPrice not confirmed
- AI Pro Paid, individual$10.00 / month
- AI Ultimate Paid, individual$30.00 / month
- AI Pro (Organizations) Team$20.00 / month
Full comparison with sources
| Coding | ||
| What it is for | ||
| What it is for | JetBrains AI Assistant is a plugin that adds AI chat, code completion and coding agents to JetBrains IDEs; a beginner might try it for code suggestions and questions about a project in IntelliJ IDEA or PyCharm. | Tabnine is an AI coding assistant for code editors and the terminal, now owned by Tricentis, whose current documentation describes enterprise plans; a beginner could use it for code completions and chat about a codebase if their organization provides access. |
| Good for | ||
| Editor's suggestion |
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| Cost | ||
| Free planA free plan that is not time-limited. Trials are listed separately. |
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| Plans and pricesOriginal currency and billing period. No conversion. |
| Plans not yet confirmed |
| AI models | ||
| AI modelsThe AI models the official pages name for this product. Line-ups change often, so check the date. |
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| Workflow | ||
| Code completionSuggests code as you type. |
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| Repository contextCan read across your project, not only the open file. |
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| How it runsWhere you use it, for example a desktop editor, a command line, or a cloud agent. |
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| PlatformsWhere the product is offered: web, desktop app, mobile app, or editor extension. |
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| Requirements | ||
| AccountWhether you need to sign up before using it. |
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| Where it is availableCountries or regions where the provider says it can be used. |
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| Sources and confidence | ||
| Confidence | Last checked 2026-10-11 All compared fields have a confirmed value. | Last checked 2026-10-10 Not yet confirmed: Free plan, Where it is available |
What it is for
What it is for
JetBrains AI Assistant:
JetBrains AI Assistant is a plugin that adds AI chat, code completion and coding agents to JetBrains IDEs; a beginner might try it for code suggestions and questions about a project in IntelliJ IDEA or PyCharm.
Tabnine:
Tabnine is an AI coding assistant for code editors and the terminal, now owned by Tricentis, whose current documentation describes enterprise plans; a beginner could use it for code completions and chat about a codebase if their organization provides access.
Editor's suggestion
JetBrains AI Assistant:
- Editor's suggestion: Try it while writing small functions, and read every suggestion before accepting it.
- Editor's suggestion: Ask it to explain how an unfamiliar project is organised before you change anything.
Tabnine:
- Editor's suggestion: Try it while writing small functions, and read every suggestion before accepting it.
- Editor's suggestion: Ask it to explain how an unfamiliar project is organised before you change anything.
Cost
Free plan
A free plan that is not time-limited. Trials are listed separately.
JetBrains AI Assistant:
- Supportedjetbrains.comchecked 2026-10-10
AI Free plan
Tabnine:
- Not yet confirmed
Plans and prices
JetBrains AI Assistant:
- AI Free (Free plan)$0.00 / month
- AI Trial (30 days of AI Pro) (Time-limited trial)Price not confirmed
- AI Pro (Paid, individual)$10.00 / month
- AI Ultimate (Paid, individual)$30.00 / month
- AI Pro (Organizations) (Team)$20.00 / month
- All plan details and sources
Tabnine:
Plans not yet confirmedAI models
AI models
The AI models the official pages name for this product. Line-ups change often, so check the date.
JetBrains AI Assistant:
- Claude Opus 5.5, Claude Sonnet 5.5, Claude Fable 5.1, Gemini 3.8 Flash, Gemini 3.7 Flash, GPT-6.1 Sol, GPT-6 Luna, GPT-6 Soljetbrains.comchecked 2026-10-10
Tabnine:
- Claude 4.8 Opus, Claude 4.7 Opus, Claude 4.6 Sonnet, GPT-5.5, GPT-5.4, GPT-5.3 Codex, Gemini 3.5 Pro, Gemini 3.1 Prodocs.tabnine.comchecked 2026-10-10
Workflow
Code completion
Suggests code as you type.
JetBrains AI Assistant:
- Supportedjetbrains.comchecked 2026-10-10
Plan not specified · On: Editor extension
Tabnine:
- Supporteddocs.tabnine.comchecked 2026-10-10
Plan not specified · On: Editor extension
Repository context
Can read across your project, not only the open file.
JetBrains AI Assistant:
- Supportedjetbrains.comchecked 2026-10-10
Plan not specified · On: Editor extension
Tabnine:
- Supporteddocs.tabnine.comchecked 2026-10-10
Plan not specified
How it runs
Where you use it, for example a desktop editor, a command line, or a cloud agent.
JetBrains AI Assistant:
- IDE extensionjetbrains.comchecked 2026-10-10
On: Editor extension
Tabnine:
- IDE extension, CLIdocs.tabnine.comchecked 2026-10-10
Platforms
Where the product is offered: web, desktop app, mobile app, or editor extension.
JetBrains AI Assistant:
- Editor extensionjetbrains.comchecked 2026-10-10
On: Editor extension
Tabnine:
- Editor extensiondocs.tabnine.comchecked 2026-10-10
On: Editor extension
Requirements
Account
Whether you need to sign up before using it.
JetBrains AI Assistant:
- JetBrains Account needed to use a JetBrains AI plan; own API keys (BYOK) can be used without a JetBrains AI subscriptionjetbrains.comchecked 2026-10-10
Tabnine:
- Tabnine user account required (sign up or join a Tabnine team)docs.tabnine.comchecked 2026-10-10
Where it is available
Countries or regions where the provider says it can be used.
JetBrains AI Assistant:
- Usage permitted only in the locations listed on JetBrains' AI Service Territory pagejetbrains.comchecked 2026-10-10
Tabnine:
- Not yet confirmed
Sources and confidence
Confidence
JetBrains AI Assistant:
Last checked 2026-10-11
All compared fields have a confirmed value.
Tabnine:
Last checked 2026-10-10
Not yet confirmed: Free plan, Where it is available