Tessera
An open, deterministic evidence layer for AI agents. Every answer is built from claims that trace back to exact source records; what can't be proven is refused, not guessed. Every agent action is drafted from verified claims, previewed exactly, and executed only behind human approval — with a receipt. Faithfulness is a measurable number in CI, not a vibe.
✅ Pros / Advantages
- • Evidence-Gated Answers (Faithfulness Floor)
- • Verifiable Receipts & Trust Bundles (.tsb)
- • MCP-Native Evidence Oracle
- • Propose-Approve-Execute Action Model
- • Issuance Ledger (Merkle Log)
❌ Cons / Limitations
💰 Pricing Plans
Free
Pricing details are gathered from public sources and are subject to change. Please visit the official website for real-time rates.
Last updated: July 2026 · 9bests editorial review
✅ Who should use Tessera
- • Evidence-Gated Answers (Faithfulness Floor)
- • Verifiable Receipts & Trust Bundles (.tsb)
- • MCP-Native Evidence Oracle
- • Propose-Approve-Execute Action Model
- • Issuance Ledger (Merkle Log)
⚠️ Who should look elsewhere
🎯 Common use cases
Brainstorming and drafting messages
Answering complex questions with citations
Coding help and debugging
⚖️ Tessera vs ChatGPT
| Tessera | ChatGPT | |
|---|---|---|
| Rating | 4/5 | 4.8/5 |
| Pricing | Free | Free / Plus $20/mo |
| Key strength | Evidence-Gated Answers (Faithfulness Floor) | Largest ecosystem |
See the full head-to-head in our Tessera vs ChatGPT comparison.
❓ Frequently asked questions
Is Tessera free?
+
Tessera offers a free tier (Free). Paid plans unlock higher limits and advanced features.
What is Tessera best for?
+
Tessera is best for Evidence-Gated Answers (Faithfulness Floor) and Verifiable Receipts & Trust Bundles (.tsb). An open, deterministic evidence layer for AI agents. Every answer is built from claims that trace back to exact source records; what can't be proven is refused, not guessed. Every agent action is drafted from verified claims, previewed exactly, and executed only behind human approval — with a receipt. Faithfulness is a measurable number in CI, not a vibe.
How does Tessera compare to ChatGPT?
+
Tessera (4/5) and ChatGPT (4.8/5) serve overlapping needs. Tessera stands out for Evidence-Gated Answers (Faithfulness Floor), while ChatGPT is stronger at Largest ecosystem. Choose based on your priority.
🔄 Top Alternatives to Tessera
Related ToolsChatGPT
Most versatile AI chatbot with plugin ecosystem
Claude
Best for long-context analysis and coding
Google Gemini
Google's multimodal AI with deep search integration
Microsoft Copilot
AI assistant integrated with Microsoft 365