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Telnyx Inference – GLM-5.2 Chat Completions (Large Context / Upto Tier)
x402
Telnyx Inference – GLM-5.2 Chat Completions (Large Context / Upto Tier) is a paid API for AI agents from x402.telnyx.com, paid per call via x402, $0.102602/call, status unknown (last checked 2026-10-15).
OpenAI-compatible chat completions using zai-org/GLM-5.2 at the large-context 'upto' pricing tier, supporting up to 200K character messages and tool use, paid per call via x402.
Price / call$0.102602
Success—
StatusUnknown
How this service works
Chat completions via Telnyx Inference (zai-org/GLM-5.2). OpenAI-compatible. $0.037526 USDC per call. (upto metered — large context)
Output
Returns an OpenAI-compatible chat completion JSON object containing the generated assistant message (or tool call), finish reason, token usage statistics, and model identifier.
Example use cases
Long-document contract analysis
“I have a 40,000-word legal agreement — feed the whole thing to GLM-5.2 and tell me what the termination clauses say and whether there are any indemnification risks.”
Multi-turn tool-calling agent step
“Run the next reasoning step for my agent using GLM-5.2: here are the last 20 messages and these 5 tool definitions — let the model decide which tool to call next.”
Large codebase review
“I'm going to paste 150KB of Python source code — use GLM-5.2 on the upto tier to review it for security vulnerabilities and suggest fixes, with temperature 0.2 and up to 8192 tokens of output.”
Technical details
Endpoint
POSThttps://x402.telnyx.com/v1/chat/completions/_t/glm-5.2/upto?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need GLM-5.2 specifically at the large-context pricing tier — ideal for prompts or conversation histories with very long content (up to 200K characters per message) that exceed cheaper tier limits, or when you need per-call x402 micropayment billing without API key subscriptions. Prefer over the standard GLM-5.2 tier when document or context size is the primary constraint.
Side effects
- Payment failure or insufficient USDC balance (402 error)
- Messages array exceeds 32 items or content exceeds 200K characters (422/400 validation error)
- max_tokens exceeds 8192 (validation error)
- Model temporarily unavailable or inference timeout (503/504)
- Malformed message roles or missing required fields (400 error)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| n | integer | Fixed to one completion per paid call. |
| model | string | Model identifier; fixed to zai-org/GLM-5.2 on this route. |
| tools | array | |
| messages | array | OpenAI-style chat messages. |
| max_tokens | integer | |
| temperature | number |
Tags
x402
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