2026 Audit Report

GPT-5.2 Instant vs Baichuan 4

Is GPT-5.2 Instant worth the premium? Our automated audit reveals a 72% cost difference in production environments.

Last updated: Oct 23, 2026Sources: AxiomGrid Model Wiki · Provider pricing pagesQuality: HIGH

Axiom Verdict

"Major efficiency gain. Switching from GPT-5.2 Instant to Baichuan 4 cuts costs by half (72%). Recommended for high-volume batch processing."

Key Metrics

Axiom Snapshot
MetricGPT-5.2 InstantBaichuan 4
Input / 1M￥112.50￥31.50
Output / 1M￥450.00￥63.00
Cache Read￥56.25￥18.00
Context Window128K128K
Max Output4K4K
MultimodalYesNo
LatencyTBDTBD
Best FitGeneral ChatMedical

Action Plan

  • Migrate high-volume workloads to Baichuan 4 for immediate cost relief.
  • Keep GPT-5.2 Instant only for edge-case arbitration and premium reasoning.
  • Set a weekly cost audit to prevent pricing drift.

Methodology

  • Pricing is normalized to cost per 1M input/output tokens for direct comparison.
  • Arbitrage gap compares current input pricing against the higher-priced model.
  • Quality tier reflects pricing completeness, context window, and use-case coverage.

Pricing Matrix

MetricGPT-5.2 InstantBaichuan 4
Input / 1M￥112.50￥31.50
Output / 1M￥450.00￥63.00
Cache Read￥56.25￥18.00

Use Case Analysis

GPT-5.2 Instant Wins
  • General Chat
Baichuan 4 Wins
  • Medical

FAQ

Which model is cheaper: GPT-5.2 Instant or Baichuan 4?
Baichuan 4 shows a 72% cost advantage based on current input pricing.
When should I choose GPT-5.2 Instant?
GPT-5.2 Instant is best for General Chat.
How does the context window compare?
GPT-5.2 Instant supports 128K context vs Baichuan 4 at 128K.
Which model is better for high-volume routing?
Baichuan 4 is the recommended L1/L2 router for cost efficiency.
Do cache discounts materially change costs?
Yes. Cache pricing can shift effective input costs by 10-90% depending on hit rate.
How often is this comparison updated?
This audit refreshes as model pricing changes. Last updated Oct 23, 2026.

Performance Radar

GPT-5.2 Instant
Baichuan 4

Cost Scaling (Monthly)

GPT-5.2 Instant vs Baichuan 4: 2026 Cost Audit | AxiomGrid