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Compare / head-to-head

GLM-4.5-AirXvsGPT-6 Astra

GLM-4.5-AirX and GPT-6 Astra do not yet share a public benchmark, so quality cannot be compared apples-to-apples. GLM-4.5-AirX is 10.7x cheaper per token. GPT-6 Astra has the larger context window (1.1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
0
no overlap yet
Cheaper per token
GLM-4.5-AirX
10.7x cheaper, input + output
Larger context
GPT-6 Astra
1.1M tokens
Provider uptime (30d)
— · 94.2446%
Z.ai · OpenAI
text
Context
128K
Max out
98K
Input /1M
$1.1
Output /1M
$4.5
Cached /1M
$0.22
Scores
0 · 0 core
GPT-6 Astra
OpenAI · released 2026-09-03
textvision
Context
1.1M
Max out
128K
Input /1M
$10
Output /1M
$50
Cached /1M
$1
Scores
8 · 5 core
Quality

Benchmark matrix

BenchmarkGLM-4.5-AirXGPT-6 AstraΔEdge
Reported by both · 0
No public benchmark is reported for both models yet.
Only GLM-4.5-AirX reports · 0
GLM-4.5-AirX reports nothing GPT-6 Astra does not.
Only GPT-6 Astra reports · 7
GPQA Diamondnot reported96%
AutomationBenchnot reported41.4%
FrontierMath Tier 4 v2 (Epoch AI run)not reported97.6% epoch
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported93.7% epoch
OTIS Mock AIME 2024-2025 (Epoch AI run)not reported100% epoch
SimpleQA Verifiednot reported75.6% epoch
Terminal-Bench Science 0.1not reported64.6%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GLM-4.5-AirX minus GPT-6 Astra in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGLM-4.5-AirXGPT-6 AstraEdge
Context window128K tokens1.1M tokensGPT-6 Astra
Max output98K tokens128K tokensGPT-6 Astra
Input price / 1M$1.1 $10 GLM-4.5-AirX
Output price / 1M$4.5 $50 GLM-4.5-AirX
Cached input / 1M$0.22 $1 GLM-4.5-AirX
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$5.6$60GLM-4.5-AirX
Modalitiestexttext · visionGPT-6 Astra
Released2026-09-03
Cited benchmark scores08
Reliability

Provider status

All providers
More matchups

GPT-6 Astra vs …

Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run GLM-4.5-AirX and GPT-6 Astra on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.