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GPT 3.5 Turbo Instruct vs GLM 5.2

At a glance
OpenAIGPT 3.5 Turbo Instruct

Instruction-following variant of GPT-3.5 for completion-style tasks.

4K ctx$1.50/$2.00 per M
Zhipu AIGLM 5.2

Z.ai's frontier reasoning model for long-context agents and software engineering.

83262K ctx$1.40/$4.40 per M#16/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
OpenAIGPT 3.5 Turbo Instruct
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Competition Math—
Coding
Real-World Coding—
Agentic
Task Horizon1min
Zhipu AIGLM 5.2
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI83.4
Reasoning & Knowledge
Graduate Science91.9%Factual Recall38.1%
Math
Competition Math86.4%
Coding
Real-World Coding78.7%
Agentic
Task Horizon—
Specs
OpenAIGPT 3.5 Turbo Instruct
4K
Context
4K
Max output
Sep 2023
Released
Zhipu AIGLM 5.2
262K
Context
128K
Max output
Jun 2026
Released
Capabilities
OpenAIGPT 3.5 Turbo Instruct
Vision
Audio
Reasoning
Zhipu AIGLM 5.2
Vision
Audio
Reasoning
Pricing
OpenAIGPT 3.5 Turbo Instruct
Live pricing, shown before you run
Input$1.50/M tokens
Output$2.00/M tokens
Zhipu AIGLM 5.2
Live pricing, shown before you run
Input$1.40/M tokens
Output$4.40/M tokens
Cache read$0.26/M tokens
Chat with GPT 3.5 Turbo InstructGo to model
Chat with GLM 5.2Go to model
Frequently Asked Questions: GPT 3.5 Turbo Instruct vs GLM 5.2▼

Which is better, GPT 3.5 Turbo Instruct or GLM 5.2?

▼

Both GPT 3.5 Turbo Instruct and GLM 5.2 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, GPT 3.5 Turbo Instruct or GLM 5.2?

▼

GPT 3.5 Turbo Instruct has a lower blended cost. GPT 3.5 Turbo Instruct: $1.50 input / $2.00 output. GLM 5.2: $1.40 input / $4.40 output.

Which has a larger context window, GPT 3.5 Turbo Instruct or GLM 5.2?

▼

GLM 5.2 has a larger context window: GPT 3.5 Turbo Instruct supports 4K tokens vs GLM 5.2 at 262K tokens.

What are the key differences between GPT 3.5 Turbo Instruct and GLM 5.2?

▼

Key differences: only GLM 5.2 offers extended reasoning mode. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GPT 3.5 Turbo Instruct and GLM 5.2 for free on idapt.app to see which performs better for your specific needs.

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