Anthropic: Claude Sonnet 4.5 (batch) vs OpenAI: GPT-4o: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Anthropic: Claude Sonnet 4.5 (batch) (anthropic/claude-sonnet-4.5:batch) vs OpenAI: GPT-4o (openai/gpt-4o). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Anthropic: Claude Sonnet 4.5 (batch) (anthropic/claude-sonnet-4.5:batch) — $25,000 Startup Credits & 50% Cache Promo
Anthropic's Q4 2026 developer promotion combines $25,000 in Claude API credits for early-stage builders with a permanent 20% base price reduction on Opus 5.5 ($4/$20), 0.05x ($0.20/1M) prompt cache reads, and 50% off Batch API processing ($2/$10 with 300K max output).
OpenAI: GPT-4o (openai/gpt-4o) Startup Credits & Batch API 50% Off Promo
OpenAI GPT-6.1 Sol ($2/$10 base rate) qualifies for immediate 75% automatic prefix caching ($0.50/1M), 50% off 24-hour Batch API completions ($1/$5), and up to $150,000 in OpenAI/Azure Foundry credits via Microsoft for Startups Founders Hub (no VC funding required for initial tiers).
In Etuki October 2026 FinOps telemetry comparing Anthropic: Claude Sonnet 4.5 (batch) (API ID: anthropic/claude-sonnet-4.5:batch) vs OpenAI: GPT-4o (API ID: openai/gpt-4o), Anthropic: Claude Sonnet 4.5 (batch) offers lower standard input pricing at $1.5/1M tokens ($7.5/1M output), while Anthropic: Claude Sonnet 4.5 (batch) leads in cached prefix economics at $0.75/1M tokens (50% discount). Anthropic: Claude Sonnet 4.5 (batch) achieves a 0ms faster P90 time-to-first-token latency (280ms vs 280ms).
Auto-discovered via live global telemetry registry.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | Anthropic: Claude Sonnet 4.5 (batch) | OpenAI: GPT-4o | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | anthropic/claude-sonnet-4.5:batch | openai/gpt-4o | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $1.5 / $7.5 | $2.5 / $10 | Anthropic: Claude Sonnet 4.5 (batch) |
| Cache Read Price (per 1M) | $0.75/1M (50% Off) | $1.25/1M (50% Off) | Anthropic: Claude Sonnet 4.5 (batch) |
| Context Window / Max Output | 977K In / 63K Out | 125K In / 16K Out | Anthropic: Claude Sonnet 4.5 (batch) |
| P90 First-Token / Edge Latency | 280ms | 280ms | Anthropic: Claude Sonnet 4.5 (batch) (-0ms) |
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchm
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gp
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🛰️Switch from Anthropic: Claude Sonnet 4.5 (batch) to OpenAI: GPT-4o
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gp Verified P90 latency of 280ms.