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Glm 5.3 Flash on Run BiOS
glm-5.3-flash
$10Welcome credit
New accounts start with $10 in credits — that’s about 66.7M input tokens of Glm 5.3 Flash, on us.
Create an account1M contextVisionTool callingReasoning
Pricing
USD per 1M tokens · as of 29 August 2026| Input | $0.15 |
| Output | $0.50 |
| Cached input | $0.03 |
Flat rate — every request bills the same. Full catalog and comparisons on the pricing comparison page.
Where it fits
Not sure? BiOS Adaptive routes to the best model per request, including this one.
Call it now — OpenAI-compatible
curl https://api.runbios.ai/v1/chat/completions \
-H "Authorization: Bearer $BIOS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "glm-5.3-flash",
"messages": [{ "role": "user", "content": "Hello" }]
}'Existing OpenAI SDK code works by changing the base URL to https://api.runbios.ai/v1 and the key. API overview