Verified 2026 API Rates • Prompt Caching & Batch ROI

OpenAI: GPT-6.1 Sol vs OpenAI o3-mini

Compare real-world API costs for OpenAI: GPT-6.1 Sol ($2/$10) vs OpenAI o3-mini ($1.1/$4.4). Calculate Prompt Caching ROI & Batch API savings.

OpenAI o3-mini saves up to 45% on base input tokens
OpenAI

OpenAI: GPT-6.1 Sol

gpt-6.1-sol
Base Input Rate
$2.00 / 1M
Output Rate
$10.00 / 1M
Prompt Cache Read
$0.10 / 1M (-95%)
Cache Write Surcharge
$0.00 (Free write)
Batch API Discount
-50% Off
Context Window
1,050k tokens
Quality Index (MMLU)
94.5
OpenAI

OpenAI o3-mini

o3-mini
Base Input Rate
$1.10 / 1M
Output Rate
$4.40 / 1M
Prompt Cache Read
$0.55 / 1M (-50%)
Cache Write Surcharge
$0.00 (Free write)
Batch API Discount
-50% Off
Context Window
200k tokens
Quality Index (MMLU)
89
Differential Module 1

Prompt Caching ROI & Write Surcharge Break-Even Analysis

Prompt caching drastically reduces input token costs for static prefixes like system prompts, tool schemas, and document chunks. Compare caching mechanisms between OpenAI: GPT-6.1 Sol and OpenAI o3-mini:

OpenAI: GPT-6.1 Sol Caching Profile-95% read discount

  • Cached Read Price: $0.100 per 1M tokens.
  • Write Surcharge: $0.00 (automatic caching with zero write penalty).
  • Minimum Cache Prefix: 1,024 tokens.
  • Amortization Rule: Immediate net savings from first cached read call.

OpenAI o3-mini Caching Profile-50% read discount

  • Cached Read Price: $0.550 per 1M tokens.
  • Write Surcharge: $0.00 (automatic caching with zero write penalty).
  • Minimum Cache Prefix: 1,024 tokens.
  • Amortization Rule: Immediate net savings from first cached read call.
Differential Module 2

Batch API 50% Discount Offload vs Real-Time SLA

Asynchronous Batch APIs cut total token expenditures in half (50% off input and output) in exchange for non-realtime execution (up to 24-hour turnaround SLA).

Model / ArchitectureStandard Input / OutputBatch 50% Off Input / OutputTurnaround SLAOptimal Use Cases
OpenAI: GPT-6.1 Sol$2.00 / $10.00$1.00 / $5.00 (-50%)24 Hours max (typically 30m - 2h)Bulk evaluation, dataset labeling, background summarization
OpenAI o3-mini$1.10 / $4.40$0.55 / $2.20 (-50%)24 Hours max (typically 30m - 2h)Offline document translation, embedding backfills, test suites
Differential Module 3

Context Window Escalation & Tiered Pricing Architecture

Massive context windows allow ingesting entire repositories or books, but pricing models differ drastically between flat-rate vendors and tiered step-up pricing.

OpenAI: GPT-6.1 Sol Context Capacity

Provides a 1,050k token context window with a maximum output limit of 128k tokens.✓ Flat-rate billing across all prompt sizes up to max context ceiling.

OpenAI o3-mini Context Capacity

Provides a 200k token context window with a maximum output limit of 100k tokens.✓ Flat-rate billing across all prompt sizes up to max context ceiling.

Quill Strategic Content

Real-World Production Scenarios: Monthly Spend Projections

Pre-computed monthly engineering bill projections across 3 representative enterprise application workloads:

Scenario 1

RAG Knowledge Base & Enterprise Search

100,000 queries/month, 3,500 input tokens (system + 5 retrieved chunks), 400 output tokens, 75% prompt cache hit rate.

OpenAI: GPT-6.1 Sol:$601.25/mo
OpenAI o3-mini:$416.63/mo
Delta Savings:-$184.62 (31%)
Architecture Verdict:OpenAI o3-mini delivers 31% lower monthly spend ($184.62/mo savings) for this workload profile.
Scenario 2

Multi-Turn Coding Agent & ReAct Loops

25,000 tasks/month, 8,000 input tokens (accumulating conversation context & tool schemas), 1,200 output tokens, 85% cache hit rate.

OpenAI: GPT-6.1 Sol:$348.72/mo
OpenAI o3-mini:$239.11/mo
Delta Savings:-$109.61 (31%)
Architecture Verdict:OpenAI o3-mini delivers 31% lower monthly spend ($109.61/mo savings) for this workload profile.
Scenario 3

High-Throughput Offline Data Extraction

500,000 records/month, 1,500 input tokens, 250 output tokens, 100% batch offload (24-hour turnaround SLA).

OpenAI: GPT-6.1 Sol:$1232.50/mo
OpenAI o3-mini:$646.25/mo
Delta Savings:-$586.25 (48%)
Architecture Verdict:OpenAI o3-mini delivers 48% lower monthly spend ($586.25/mo savings) for this workload profile.
毫秒级实时交互模拟引擎

OpenAI: GPT-6.1 Sol 对比 OpenAI o3-mini

针对企业典型三大工程落地形态(RAG 知识库、Coding Agent 多轮、离线批量清洗)进行精确成本演算:

Live 50ms Engine
月度请求量 (Requests)100,000
单次输入 Tokens (Input)4,000
单次输出 Tokens (Output)1,000
Prompt 缓存命中率 (Cache Hit)70%
Batch API 批处理分流比例0%
OpenAI o3-mini 更便宜

预计每月节省

OpenAI: GPT-6.1 Sol$1,268.00$12.680// 千次请求
对比
OpenAI o3-mini$726.00$7.260// 千次请求
Developer FAQs

Frequently Asked Questions: OpenAI: GPT-6.1 Sol vs OpenAI o3-mini

Authoritative answers on API rate limits, pricing math, break-even thresholds, and architectural migration.

1Which model is cheaper overall: OpenAI: GPT-6.1 Sol or OpenAI o3-mini?

At base pricing, OpenAI: GPT-6.1 Sol costs $2/1M input and $10/1M output, while OpenAI o3-mini costs $1.1/1M input and $4.4/1M output. The cheaper option depends on your input-to-output token ratio and whether prompt caching or batch discounts are utilized.

2How does Prompt Caching impact the cost of OpenAI: GPT-6.1 Sol vs OpenAI o3-mini?

OpenAI: GPT-6.1 Sol offers a 95% read discount ($0.1/1M), whereas OpenAI o3-mini provides a 50% read discount ($0.55/1M). High cache hit ratios (>70%) significantly compress the cost delta in agentic and RAG architectures.

3Can I use Batch API with OpenAI: GPT-6.1 Sol or OpenAI o3-mini to save 50%?

OpenAI: GPT-6.1 Sol supports 50% batch offload discounts for asynchronous 24-hour turnaround tasks. OpenAI o3-mini supports 50% batch discounts.

4What are the context window limits and tiered pricing rules for OpenAI: GPT-6.1 Sol vs OpenAI o3-mini?

OpenAI: GPT-6.1 Sol features a 1,050k context window with flat per-token pricing. In comparison, OpenAI o3-mini supports 200k tokens with flat per-token pricing.