Reka Flash 3 is a general-purpose, instruction-tuned large language model with 21 billion parameters, developed by Reka. It excels at general chat, coding tasks, instruction-following, and function calling. Featuring a...
Model details →Reka Flash 3 vs Z.ai: GLM 5.2 (free)
Z.ai: GLM 5.2 (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...
Model details →Side-by-side comparison
| Capability | Reka Flash 3 | Z.ai: GLM 5.2 (free) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 66K | 33K | 🏆 Reka Flash 3 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.10 | $0.00 | 🏆 Z.ai: GLM 5.2 (free) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.20 | $0.00 | 🏆 Z.ai: GLM 5.2 (free) |
| Tool / function calling First-class support for emitting structured tool calls. | — | — | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Reka Flash 3 better than Z.ai: GLM 5.2 (free)?
Z.ai: GLM 5.2 (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Reka Flash 3 and Z.ai: GLM 5.2 (free)?
Input: $0.10 vs $0.00 per 1M tokens. Output: $0.20 vs $0.00 per 1M tokens.
What context windows do Reka Flash 3 and Z.ai: GLM 5.2 (free) support?
Reka Flash 3 supports up to 66K tokens. Z.ai: GLM 5.2 (free) supports up to 33K tokens.
Do both Reka Flash 3 and Z.ai: GLM 5.2 (free) support tool calling?
Reka Flash 3: not advertised. Z.ai: GLM 5.2 (free): not advertised.