Zhipu AI GLM 5.3 FlashX

GLM 5.3 FlashX by Zhipu AI excels in the Coding category, where it ranks #109 with a composite score of 78/100. GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s. Built on the same hybrid sparse and linear attention architecture... It is particularly strong in areas highlighted by its top benchmark performance and adoption metrics, making it suitable for both individual developers and enterprise teams looking for a reliable coding solution.

GLM 5.3 FlashX is priced at $0.37 per million input tokens and $1.25 per million output tokens (USD). Contact the provider for volume discounts and enterprise pricing. Pricing is competitive within the coding category and reflects the model's quality-to-cost ratio.

In the Coding category, GLM 5.3 FlashX holds rank #109 out of 427 models tracked. Its quality rank is #109 and adoption rank is #109. You can use our comparison tool at /compare to see detailed side-by-side metrics with specific alternatives. Key differentiators include its composite scoring across benchmarks, community sentiment, and real-world adoption rates.

GLM 5.3 FlashX has been evaluated across 6 different signals. Its strongest areas include Capabilities (83/100), Benchmarks (77/100), Pricing (99/100). These scores are derived from industry-standard benchmarks, community ratings, and real-world performance metrics. The composite score of 78/100 reflects a weighted combination of all tracked signals.

GLM 5.3 FlashX is a paid model, though some providers may offer trial credits or limited free tiers for evaluation. Check Zhipu AI's website for current free tier availability and promotional offers.

GLM 5.3 FlashX supports a 1,049K token context window (1,048,576 tokens total). That translates to roughly 786,432 words in a single prompt. This is large enough to process entire codebases, research papers, or long conversation histories in one shot.

GLM 5.3 FlashX can generate up to 131K output tokens (131,072 tokens) per response. That is roughly 98,304 words. This is enough for generating complete code files, detailed reports, or long-form content in a single response.

GLM 5.3 FlashX supports image understanding (vision), function/tool calling, structured JSON output, extended reasoning/chain-of-thought, streaming responses. Function calling lets you integrate it with external APIs and tools programmatically. Vision support means it can analyze images, screenshots, and diagrams alongside text. These capabilities determine which workflows and integrations the model can handle natively.

GLM 5.3 FlashX was developed by Zhipu AI. It was released on September 18, 2026. You can access it through Zhipu AI's API. Check our provider page for all models from Zhipu AI and how they compare against each other.

Pick GLM 5.3 FlashX when you need a solid balance of cost and capability for everyday development tasks, content generation, and standard API integrations. If your task is straightforward text completion or classification, a cheaper model might give you 90% of the quality at a fraction of the price. Run a quick benchmark on your actual use case before committing.

You can access GLM 5.3 FlashX through Zhipu AI's API using standard HTTP requests or their official SDK. Most providers support OpenAI-compatible endpoints, so switching between models often requires changing just the model name in your API call. Streaming is supported for real-time token-by-token output. For production use, implement proper error handling, rate limiting, and cost monitoring.