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GPT-5.6 Terra Pro vs GLM 4.7 Flash

Detailed technical comparison between GPT-5.6 Terra Pro (OpenAI) and GLM 4.7 Flash (Zhipu AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

GPT-5.6 Terra Pro: 6 WinsvsGLM 4.7 Flash: 0 Wins
Context Leader

GPT-5.6 Terra Pro

1,050,000 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

GLM 4.7 Flash

$0.06 / MTok
OpenAIactive

GPT-5.6 Terra Pro

GPT-5.6 Terra Pro is the same underlying model as [GPT-5.6 Terra](https://openrouter.ai/openai/gpt-5.6-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

View GPT-5.6 Terra Pro Full Specs →
Zhipu AIactive

GLM 4.7 Flash

As a 30B-class SOTA model, GLM-4.7-Flash offers a new option that balances performance and efficiency. It is further optimized for agentic coding use cases, strengthening coding capabilities, long-horizon task planning,...

View GLM 4.7 Flash Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-5.6 Terra ProGLM 4.7 Flash
ProviderOpenAIZhipu AI
Context Window1,050,000 tokens🏆202,752 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apimanaged api
Production StabilityBeta Access (est.)Stable GA (est.)
API AvailableYesYes
Released Date2026-07-092026-01-19

API Pricing Comparison

Input Price per Million Tokens

GPT-5.6 Terra Pro

$2.50

GLM 4.7 Flash

$0.06

Output Price per Million Tokens

GPT-5.6 Terra Pro

$15.00

GLM 4.7 Flash

$0.40

💡 Cost Ratio: GLM 4.7 Flash is 41.7x cheaper per input token than GPT-5.6 Terra Pro.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

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Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
90.8%vs77.2%+13.6% GPT-5.6 Terra Pro
GPT-5.6 Terra Pro 🏆
GLM 4.7 Flash
HumanEvalPython coding & logic synthesis
92.0%vs78.5%+13.5% GPT-5.6 Terra Pro
GPT-5.6 Terra Pro 🏆
GLM 4.7 Flash
MATHComplex mathematical problem solving
79.2%vs40.0%+39.2% GPT-5.6 Terra Pro
GPT-5.6 Terra Pro 🏆
GLM 4.7 Flash
GPQAGraduate-level expert reasoning
57.6%vs31.0%+26.6% GPT-5.6 Terra Pro
GPT-5.6 Terra Pro 🏆
GLM 4.7 Flash
HellaSwagCommonsense reasoning and inference
89.8%vs80.0%+9.8% GPT-5.6 Terra Pro
GPT-5.6 Terra Pro 🏆
GLM 4.7 Flash
MT-BenchMulti-turn conversation flow quality
9.2%vs8.1%+1.1% GPT-5.6 Terra Pro
GPT-5.6 Terra Pro 🏆
GLM 4.7 Flash

GPT-5.6 Terra Pro Quirks & Gotchas

No developer gotchas reported.

GLM 4.7 Flash Quirks & Gotchas

No developer gotchas reported.

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