GLM-5.3-Flash
Released
2026-08-26
Last refreshed
2026-10-08
Status
Researched 46d ago
Open sourceCommercial use: permittedMultimodalCodingRAGAgentsLong contextVisionJSON / Tool use
Zhipu AI releases · 14 in the last 12 months · this family litChangelog →
Created by
Pricing
Output / 1M
$0.250
Input / 1M
$0.075
Cheapest of 2 routes · Z.ai · cache read $0.015
Links
About
GLM-5.3-Flash is Z.ai's first native multimodal model in the GLM-5 series. It is a 320B-total / 18B-active Mixture-of-Experts model with a 1M-token context window and 131,072 max output tokens, supporting image, video, and file input plus function calling, tool use, structured outputs, reasoning, and prompt caching. MIT open weights are ungated on Hugging Face at zai-org/GLM-5.3-Flash. Official API model ID: glm-5.3-flash. The same model was previously tested anonymously as ox-alpha; that name is not a separate catalog slug.
Provider price ladder
Compare all 2Compare API pricing across 2 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Cache | Route |
|---|---|---|---|---|
| Z.ai | $0.075 | $0.250 | read $0.015 | Serverless |
| OpenRouter | $0.090 | $0.300 | read $0.018 | Serverless |
Capabilities
VisionMultimodalReasoningJSON / Tool useStructured OutputsPrompt Caching
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(9)
Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| Terminal-Bench 2.1 | 84.3 | Terminal-Bench 2.1Observed 2026-08-26 | — | Source |
| DeepSWE 1.1 | 63.4 | DeepSWE v1.1Observed 2026-08-26 | — | Source |
| Toolathlon | 78.4 | Toolathlon VerifiedObserved 2026-08-26 | — | Source |
| Humanity's Last Exam | 55.3 | HLE with toolsObserved 2026-08-26 | — | Source |
| Agents' Last Exam | 26.3 | Agents' Last Exam (CLI)Observed 2026-08-26 | — | Source |
| ARC-AGI-2 | 65.8 | ARC-AGI-2 semi-privateObserved 2026-10-01 | Configuration: glm-5.3-flash (Max) Harness: ARC Prize semi-private evaluation Evaluator: ARC Prize Foundation Confidence: confirmed Notes: ARC Prize official leaderboard data (ARC-AGI-2 semi-private), verified in https://arcprize.org/media/data/leaderboard/v2.json (generatedAt 2026-10-01T18:51Z) for modelDisplayName 'GLM-5.3-Flash (Max)'. Highest-scoring published effort selected. Discovered via Benchmark Heaven / Epoch AI mirror (lead only). | Source |
| FrontierCode 1.1 Main | 31.8 | FrontierCode 1.1 MainObserved 2026-10-05 | Configuration: glm-5.3-flash (Max) Harness: chisel Evaluator: Cognition Confidence: confirmed Notes: Cognition FrontierCode 1.1 Main (100 tasks) mean@5 composite ('new_score'), verified in https://cognition.com/data/frontiercode-leaderboard/data.json (the data file behind https://cognition.com/frontiercode), retrieved 2026-10-05. Agent harness: chisel. Highest-scoring published effort selected; timestamp is retrieval date. | Source |
| FrontierMath Tier 4 | 17.1 | FrontierMath Tier 4 v2 (private)Observed 2026-08-27 | Configuration: glm-5.3-flash (Max) Harness: Epoch AI FrontierMath Tier 4 v2 private set Evaluator: Epoch AI Confidence: confirmed Notes: Epoch AI-run evaluation (evaluator of record), from Epoch AI Benchmarking Hub data download https://epoch.ai/data/benchmark_data.zip (file frontiermath_tier_4_v2.csv, row 'glm-5.3-flash_max', run started 2026-08-27). Epoch data is CC BY 4.0: credit 'Epoch AI, Capabilities & benchmarking, https://epoch.ai/benchmarks'. Highest-scoring Epoch configuration for this model selected; other configurations exist in the same file. Discovered via Benchmark Heaven (lead only). | Source |
| Google-Proof Q&A | 90.2 | diamondObserved 2026-08-26 | Configuration: glm-5.3-flash (Max) Harness: Epoch AI Inspect harness (GPQA Diamond, 198 Q) Evaluator: Epoch AI Confidence: confirmed Notes: Epoch AI-run evaluation (evaluator of record), from Epoch AI Benchmarking Hub data download https://epoch.ai/data/benchmark_data.zip (file gpqa_diamond.csv, row 'glm-5.3-flash_max', run started 2026-08-26). Epoch data is CC BY 4.0: credit 'Epoch AI, Capabilities & benchmarking, https://epoch.ai/benchmarks'. Highest-scoring Epoch configuration for this model selected; other configurations exist in the same file. Discovered via Benchmark Heaven (lead only). | Source |
Migration checks
No linked migration route is available for this model yet.
API versions
glm-5.3-flashRankings & picks(1)
Created by
Pricing
Output / 1M
$0.250
Input / 1M
$0.075
Cheapest of 2 routes · Z.ai · cache read $0.015
Links