AI model comparison

GLM 4.7 Flash vs gpt-oss-120b

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

As a 30B-class SOTA model, GLM-4.7-Flash offers a new option that balances performance and efficiency.

Input / 1M
$0.06
Output / 1M
$0.40
Context
200K

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases.

Input / 1M
$0.15
Output / 1M
$0.60
Context
131K

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

z-ai logo

GLM 4.7 Flash

1.9x cheaper for a typical chat

Higher intelligence score

z-ai logo

GLM 4.7 Flash

14.9 vs 11.6 on Artificial Analysis

Larger context window

z-ai logo

GLM 4.7 Flash

200K vs 131K tokens

Newer release

z-ai logo

GLM 4.7 Flash

Released January 19, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

z-ai logoGLM 4.7 Flash14.9
openai logogpt-oss-120b11.6

Coding index

z-ai logoGLM 4.7 FlashNot available
openai logogpt-oss-120b30.4

Agentic index

z-ai logoGLM 4.7 FlashNot available
openai logogpt-oss-120b3.7

Pricing

GLM 4.7 Flash vs gpt-oss-120b API pricing

Per-token API rates. Cheaper option highlighted.

Metricz-ai logoGLM 4.7 Flashopenai logogpt-oss-120b
Input tokensPer 1M tokens$0.06$0.15
Output tokensPer 1M tokens$0.40$0.60
Cached input (read)Per 1M tokensNot available$0.08
Cache writePer 1M tokensNot availableNot available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

z-ai logoGLM 4.7 Flash$0.32
openai logogpt-oss-120b$0.60

Coding task

30K in, 4K out

z-ai logoGLM 4.7 Flash$3.42
openai logogpt-oss-120b$6.90$4.65 cached

Long document summary

150K in, 2K out

z-ai logoGLM 4.7 Flash$9.88
openai logogpt-oss-120b$23.70$12.45 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricz-ai logoGLM 4.7 Flashopenai logogpt-oss-120b
Context window200K tokens131K tokens
Max output118K tokens66K tokens
Input typesTextText
Output typesTextText
Reasoning effort levelsNot availableHigh, Medium, Low
Default reasoning effortNot availableMedium
Release dateJanuary 19, 2026August 5, 2025

Features

Supported features

API features available for each model.

Metricz-ai logoGLM 4.7 Flashopenai logogpt-oss-120b
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesSupportedSupported
Deterministic seedSupportedSupported
Verbosity controlNot supportedNot supported

Our take

GLM 4.7 Flash is 1.9x cheaper for a typical chat. GLM 4.7 Flash scores higher on the Artificial Analysis Intelligence Index (14.9 vs 11.6). GLM 4.7 Flash has the larger context window (200K vs 131K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is GLM 4.7 Flash or gpt-oss-120b cheaper?

GLM 4.7 Flash is cheaper for a typical chat (2K input tokens and 500 output tokens). GLM 4.7 Flash costs $0.06 per 1M input tokens and $0.40 per 1M output tokens, while gpt-oss-120b costs $0.15 per 1M input tokens and $0.60 per 1M output tokens.

Which has a bigger context window, GLM 4.7 Flash or gpt-oss-120b?

GLM 4.7 Flash supports up to 200K tokens of context, compared with 131K for gpt-oss-120b.

Is GLM 4.7 Flash smarter than gpt-oss-120b?

On the Artificial Analysis Intelligence Index, GLM 4.7 Flash scores 14.9 and gpt-oss-120b scores 11.6, putting GLM 4.7 Flash ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use GLM 4.7 Flash and gpt-oss-120b at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see GLM 4.7 Flash and gpt-oss-120b answer side by side and keep the better response.

z-ai logoopenai logo

Why choose? Ask both.

Send one prompt to GLM 4.7 Flash and gpt-oss-120b at the same time. Compare the answers side by side and keep the best one.