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GLM 5.3 Flash

glm-5.3-flash

Open-weight sparse MoE model for efficient coding and long-horizon agentic work

Intelligence
57.5
Context
1.04M
Training cutoff
--
Added
2026-08-29
Inputs
Vision

Providers

3 routes serve GLM 5.3 Flash, in the order requests are offered to them. Each row is measured on its own route over the selected window, so a row with little traffic behind it reads as thin evidence rather than as the model's number.

ProviderContextMax outputInput/1MOutput/1Mp50 TTFTp90 TTFTp50 latencyp90 latencyp50 output rateEligible callsErrorsUptimeEvidence
Fireworks AI primary
accounts/fireworks/models/glm-5p3-flash
Vision
1.04M131,072$0.15$0.50------------0%warming · 30m
Together AI failover 1
zai-org/GLM-5.3-Flash
Vision
1.04M131,072$0.15$0.50------------0%warming · 30m
NEAR AI failover 2
z-ai/glm-5.3-flash
Vision
1.04M131,072$0.075$0.25------------0%warming · 30m

TTFT is the median time to the first visible answer token over real ModelRelay requests, with a fixed prompt standing in for models that have no traffic yet. Speed ranks by it. Intelligence is the Artificial Analysis Intelligence Index.

Pin a request to one provider

Routing follows the priority order above and fails over on error. To require a single provider, add a provider object to the request body on the OpenAI- and Anthropic-compatible endpoints. Setting allow_fallbacks to false makes the constraint strict: the request fails rather than routing elsewhere.

Fireworks AI
{"provider": {"only": ["fireworks"]}}
Together AI
{"provider": {"only": ["together"]}}
NEAR AI
{"provider": {"only": ["near-ai"]}}