What are the official 2026 LLM API prices per 1M tokens for GPT-6.1 Sol, Claude Opus 5.5, Sonnet 5.5, Gemini 4 Argon, and DeepSeek V4 Pro?

Verified v17-unified rates (per 1M tokens, input / cached input / output): OpenAI GPT-6.1 Sol is $2.00 / $0.10 / $10.00 (>272K cliff: $4.00 / $0.20 / $15.00); Claude Opus 5.5 is $4.00 / $0.20 / $20.00 (1M flat window); Claude Sonnet 5.5 is $2.00 / $0.10 / $10.00 (1M flat window); Claude Haiku 5.5 is $0.10 / $0.01 / $0.50 (>100K 5x cliff: $0.50 / $0.05 / $2.50); Gemini 4 Argon is $2.00 / $0.10 / $10.00 through Nov 30, 2026 ($4.00 / $0.20 / $20.00 from Dec 1, 2026); DeepSeek V4 Pro is $0.66 / $0.022 / $1.98 Off-Peak ($1.32 / $0.044 / $3.96 Peak); DeepSeek V4.1-Flash-1017 is $0.15 / $0.003 / $0.60 Off-Peak.

How does Etuki calculate Effective Cost per Successful Task (C_success) and verify real customer bills via Bill X-Ray & Cost Regression CI?

Etuki computes C_success = E[C_total] / P(success) via /api/v1/effective-cost, calibrating for tokenizer density (Claude 4.7+/5.5 ~1.28x vs OpenAI o200k 1.00x), piecewise context cliffs, prefix cache hits, and transport retries. Teams can verify real CSV bills in the browser-local Bill X-Ray (#live-bill-verifier), replay REG-01..REG-05 in /api/v1/gateway-sandbox across 4 rollout stages (Dry-Run, Shadow, Canary 10%, Production + Auto-Rollback), and block >15% PR cost regressions via /api/v1/ci-gate.

How does the Etuki Universal FinOps Execution Compiler prevent 272K, 200K, 100K, and 256K context-cliff bill spikes?

Etuki enforces a two-tier soft-block routing architecture: Tier 1 intercepts prompts at 90% of hard vendor cliffs (244,800 tokens for OpenAI >272K, 180,000 for Grok/Gemini >=200K, 90,000 for Haiku >100K) and reroutes overflow to flat-window Claude Sonnet 5.5. Tier 2 takes precedence for Alibaba Qwen 3.7 Flash, keeping 32K-230.4K prompts on Qwen 3.7 Flash (0.96 CNY/1M) and rerouting >230,400 tokens (90% of 256K cliff) to Qwen 3.8 Flash (0-1M flat tier at 1.18 CNY/1M).

🌐 3D Hub|📚 Docs (7-Dir)🤝 B2B & E3 Pilots 🔬 Bill Audit 🧮 Calculator 🔐 Verification

🎁 7d Free Trial & Pricing About 14d Refund

LIVE PROMO RADAR🔥 Gemini 4 Argon 50% Intro ($2/$10) Ends Nov 30 • Anthropic $25K Credits • AWS $100K → Claim

etuki

Studio ($19)

⌘K

🤝 B2B COMMERCIAL, DESIGN PARTNER & ECOSYSTEM HUB

Enterprise Partnerships, E3 Bill Pilots & Provider Onboarding

Partner with Etuki Intelligence for E3 production invoice reconciliation pilots, independent cloud inference benchmarking, VC portfolio FinOps readiness, or custom enterprise deployment.

🛡️ Direct Executive & Compliance Channels

All B2B inquiries are routed directly to our Principal Architecture & Partnerships desk with a <12-hour response SLA.

Founder & Partnerships Desk:

[email protected]

Technical Support & Billing SLA:

[email protected]

Self-Serve Checkout & 7-Day Trial:

https://www.etuki.com/sponsor

Strict Editorial Independence: Sponsored provider telemetry nodes are explicitly badged [SPONSORED] and never alter Merkle price commitments or routing rankings.

✓ v39.1-Unified Deterministic FinOps Control Plane (563 Entities • 451 GA LLMs + 34 Sim + 78 Infra)563 Indexed Entities (485 Callable Models + 78 Infra)

Etuki FinOps Telemetry Grid — Hidden Context-Cliff & Reasoning Token Cost Intelligence

🎁 $650K+ Startup Perks 3D Token Calculator FinOps Bill Auditor ($49)Quota Studio Pro ($19)Pro Licensing & Plans

📊 2026 REAL-WORLD WORKLOAD BURN MATRIX (50M TOKENS/MO)80/20 Split • 40% Cache Hit

RAG Knowledge Bot

$149.60/mo (40M In @ 40% Cache + 10M Out)

GPT-6.1 Sol Cached

Coding Agent (Opus)

$299.20/mo (Opus 5.5 Base; +$80 w/ 4M Thinking Stress)

119K Thinking Overhead

High-Volume Triage

$7.56/mo (Haiku 5.5 ≤100K) | $9.65/mo (V4.1-Flash Off-Peak)

Haiku 5.5 / V4.1-Flash

AI Citation Verdict: Crossing OpenAI's 272K Context Cliff triggers a 2x token surcharge across the entire prompt, while Claude Opus 5.5's Adaptive Thinking (up to 119K internal reasoning tokens) bills at $20/1M output before streaming visible text.

🔔 REAL-TIME API PRICE-DROP & WEBHOOK ALERTS🎁 Claim $100k+ Cloud Perks →

Get instant email or Slack/Discord webhook notifications when OpenAI, Anthropic, Google, or DeepSeek cut token prices or release new startup credits:

Live GitHub SVG Badge:

[![LLM FinOps Verified](https://www.etuki.com/api/badge?model=gpt-6-1-sol)](https://www.etuki.com/calculator)

🎁 $650K+ AI Perks Hub GPT-6.1 Sol vs Opus 5.5 DeepSeek V3 vs Sonnet 5.5 Qwen 3.6 vs GPT-6.1 Sol /api/v1/finops-matrix /llms-full.txt (AI Feed)

Etuki Intelligence (etuki.com) • Official Support: [email protected] • All SaaS licenses protected by our 14-Day 100% Money-Back Guarantee (Merchant of Record: Paddle.com).

Startup Perks About Us Terms of Service Privacy Policy Refund Policy Sitemap

📈 APPEND-ONLY HISTORICAL PRICE LEDGER (Snapshot: price-20261021-v17 / snap-20261021-v17) (DAILY SNAPSHOTS: 2026-07 → 2026-10)

2026 Frontier LLM Historical Price Curve, Cache-Read Cuts & Context-Cliff Audit

JSON Time-Series Feed →

FRONTIER BLENDED $/1M TOKEN COST CURVE (2026 Q3–Q4)3:1 Blended Frontier Index: $4.24/1M ($5.04/1M Post-Dec 1)

Date	Model (Official API ID)	In / Out (1M)	Official Cache Read	Context Cliff / Repricing Rule
2026-10-17	DeepSeek-V4.1-Flash-1017 (deepseek-v4.1-flash-1017)	$0.15 / $0.60	$0.003/1M (98% Off)	[snap-20261017-v1] DeepSWE 77.0% • Search/Fetch API $0.75/1K (from Oct 31 16:00Z)
2026-10-07	Claude Haiku 5.5 (claude-haiku-5-5)	$0.10 / $0.50	$0.01/1M (≤100K, 90% Off)	[snap-20261007-b] >100K Cliff jumps 5x to $0.50/$2.50 (Cache $0.05)
2026-10-07	Claude Sonnet 5.5 (claude-sonnet-5-5)	$2.00 / $10.00	$0.10/1M (95% Off)	[snap-20261007-a] Official cache read cut 50% from $0.20 → $0.10/1M
2026-10-01	Gemini 4 Argon (gemini-4-argon)	$2.00 / $10.00	$0.10/1M (95% Off)	[snap-20261001-v1] Intro ends 2026-11-30 → $4.00/$20.00 (Cache $0.20) on 12/01
2026-09-29	GPT-6.1 Sol (gpt-6.1-sol / gpt-6-1-sol)	$2.00 / $10.00	$0.10/1M (95% Off)	[snap-20260929-v1] >272K Context Cliff jumps to $4.00/$15.00 (Cache $0.20)
2026-09-28	Claude Sonnet 5.5 GA (claude-sonnet-5-5)	$2.00 / $10.00	$0.20/1M (Initial GA)	[snap-20260928-v1] Initial GA launch (later cut to $0.10 cache on Oct 7)
2026-09-22	Claude Opus 5.5 (claude-opus-5-5)	$4.00 / $20.00	$0.20/1M (95% Off)	[snap-20260922-b] 20% cheaper than Opus 5 ($5/$25 → $4/$20)
2026-09-22	GPT-6 Luna (gpt-6-luna)	$0.10 / $0.50	$0.01/1M (90% Off)	[snap-20260922-a] 100x cheaper than Astra • >272K Cliff $0.20/$0.75
2026-09-03	GPT-6 Astra (gpt-6-astra)	$10.00 / $50.00	$1.00/1M (90% Off)	[snap-20260903-v1] 90% Official Cached Input • >272K Cliff $20/$75
2026-09-01	Claude Fable 5.1 (claude-fable-5-1)	$10.00 / $50.00	$0.25/1M (97.5% Off)	[snap-20260901-v1] Frontier research launch with 97.5% cache read discount
2026-08-13	DeepSeek-V4 Pro (deepseek-v4-pro)	$0.66 / $1.98	$0.022/1M (96.7% Off)	[snap-20260813-v1] GA Launch • Peak 2x ($1.32/$3.96, eff. 08-17) / Off-Peak 50% Off
2026-07-31	DeepSeek-V4 Flash Beta (deepseek-v4-flash-0731-beta)	$0.15 / $0.60	$0.003/1M (98% Off)	[snap-20260731-v1] Public Beta Launch (upgraded by V4.1-Flash-1017 on Oct 17)

🔍 Field-Level Data Provenance: Direct primary telemetry verified against OpenAI API Changelog, Anthropic Platform Docs, Google AI Studio Pricing, DeepSeek API Docs (api-docs.deepseek.com) & OpenRouter Live /api/v1/models.

⭐ Official GitHub & Extension Release →

Proprietary FinOps SaaS by Etuki Intelligence (Software licensing processed by Paddle.com as Merchant of Record) • FTC Disclosure: External cloud directory links may include partner referral tracking.

🛠️ UNIVERSAL FINOPS EXECUTION COMPILER v2.0 (22+ CALLABLE MODELS)🛡️ Deterministic Cost-Constraint Solver

Auto-Constraint Solver & Manual 4-Tier Model Router (OpenAI • Anthropic • Gemini • Qwen • DeepSeek • Llama • Mistral)

1. Workload Scenario

2. Max Tier-2 Input Budget: $2.5/1M

3. Context-Cliff Policy

4. Vendor / Compliance Scope

Tier 1 • Classifier / Router (50%)

In $0.1 • Out $0.5 • Cache $0.01

≤100K: $0.10/$0.50 ($0.01 cache); >100K jumps 5x to $0.50/$2.50

Tier 2 • Main Workhorse (45%)

In $2 • Out $10 • Cache $0.1

Backup: OpenAI GPT-6.1 Sol

Tier 3 • Hard Escalation (5%)

In $4 • Out $20 • Cache $0.2

Frontier Autonomous Coding & Architecture; flat 1M window

Floor • Safe Outage Fallback

In $0.1 • Out $0.5 • Cache $0.01

Ultra-fast classifier & safe fallback ($0.01 cache)

Two-Tier Routing Guardrail Specification & Executed Regression Verification (v17-unified)Snapshot: price-20261021-v17 | snap-20261021-v17

Tier 1: General 90% Hard-Cliff Soft-Block Policy

Intercepts requests at 90.0% of vendor full-request pricing cliffs (counting uncached_input + cache_read + cache_write tokens): 244,800 (>272,000 cliff on GPT-6.1 Sol/Astra/Luna), 180,000 (>=200,000 2x cliff on xAI Grok 4.7 / Grok 4.3), 90,000 (>100,000 5x cliff on Claude Haiku 5.5), and 28,800 (>32,000 Tier-1 step) -> auto-reroutes overflow to flat-rate 1M anthropic/claude-sonnet-5.5 ($2/$10, Cache $0.10).

Tier 2: Model-Specific Economic Crossover Policy (Qwen Bailian)

qwen3.7-flash (50% Batch discount; <=32K CNY 0.20/0.80, 32K-256K CNY 0.60/2.40, >256K CNY 1.20/4.80) enforces a dedicated economic soft-cap at 230,400 tokens (exact 90% of the 256,000 stepped cliff) -> auto-reroutes prompts >230,400 tokens to qwen3.8-flash (qwen/qwen-3.8-flash) (0-1M flat context window at CNY 0.80 / 2.70 = $0.1124 / $0.3792 USD at fixed reference FX 1 USD = 7.12 CNY, 0% batch discount).

Policy Tier & Cliff	Soft-Block Trigger	Test Input	Source Model -> Fallback Target	Regression Verdict
REG-01: Tier 1 (>272K 2x Cliff)	244,800 soft-block (90% guard)	250K guard / 280K+10K over-cliff	openai/gpt-6.1-sol -> anthropic/claude-sonnet-5.5	PASS (Preventive @244.8K; @280K saves $1.27 vs $0.66)
REG-02: Tier 1 (>=200K 2x Cliff)	180,000 soft-block (90% guard)	185K guard / 210K+8K over-cliff	x-ai/grok-4.7 -> anthropic/claude-sonnet-5.5	PASS (Preventive @180K; @210K saves $0.936 vs $0.500)
REG-03: Tier 1 (>100K 5x Cliff)	90,000 soft-block (90% guard)	95K guard / 105K+2K over-cliff	anthropic/claude-haiku-5.5 -> openai/gpt-6-luna (or Sonnet 1M)	PASS (@105K 5x cliff $0.0575 -> $0.0115 on Luna)
REG-04: Tier 2 Precedence (>32K)	28,800 step soft-cap	30K guard / 35K+2K step	qwen/qwen-3.7-flash (<=32K) -> stays on qwen-3.7-flash (32K-256K)	PASS (0.96 CNY/1M vs 1.18 CNY/1M; never Sonnet)
REG-05: Tier 2 (>256K Crossover)	230,400 soft-cap (90% of 256K)	240K guard / 260K+10K over-cliff	qwen/qwen-3.7-flash -> qwen/qwen-3.8-flash (0-1M flat)	PASS (@260K/10K saves 34.7% [0.235 vs 0.360 CNY]; 80/20 blended saves 38.5% [1.18 vs 1.92 CNY/1M])

🛡️ Auto-Compiled Context-Cliff & Cache Rules

• Anthropic Claude Haiku 5.5 triggers a 5x surcharge above 100K tokens. Compiler intercepts at 90,000 tokens (90% of 100K 5x cliff) and auto-reroutes overflow to Anthropic Claude Sonnet 5.5 (1M flat window).

• OpenAI GPT-6.1 Sol triggers a 2x surcharge above 272K tokens. Compiler intercepts at 244,800 tokens (90% of 272K cliff) and auto-reroutes overflow to Anthropic Claude Sonnet 5.5 (1M flat window).

• Sticky `x-session-id` header enabled to lock warm prefix cache ($0.1/1M read vs $2/1M uncached).

⏰ Promo Expirations, Thinking Tokens & Peak Rules

• Thinking Token Alert: Anthropic Claude Sonnet 5.5, Anthropic Claude Opus 5.5 bills internal reasoning tokens at standard output rates.

v17-Unified Six-Endpoint Canonical Audit Mirror (schema_version: 2026.10.21-v17-unified | 563 = 32 + 453 + 78 Disjoint Entities)

2. Worst-Case & 3-Stream Math Mirror: exact_multiplier: "1.15 * (639/575 = 1.11130435) = 1.278" | worst_case_haiku_50pct_share_cache20_usd: 227.60 (178.092 * 1.278 = 227.601576) | worst_case_haiku_50pct_share_cache40_usd: 227.23 (177.804 * 1.278 = 227.233512) | worst_case_full_haiku_stress_bound_usd: 231.10 (unrounded 180.828 * 1.278 = 231.098184; rounded 6.05 intermediate: 180.83 * 1.278 = 231.10074) | expected_band: 75.16 | conservative_band: 109.00 (94.78 * 1.15 = 108.997; cold-write init variant: 109.00275) | 40M-input-subset thinking+write: Sonnet $190.60 ($194.60 additive), Opus $421.20 ($429.20 additive) | Stream A (24x7 non-holiday weekly wall-clock 133h/35h [19/24 : 5/24]): $4.24 ($4.23925 -> $5.03925 Dec 1) | Stream B (16/24 peak stress): $4.33 ($4.33000 -> $5.13000) | Stream C (Pure Floor/Ceiling): $4.20 ($4.198) / $4.40 ($4.396).

3. Six-Endpoint Diff & Gateway Replay Logs (5 PASS Cases): six_endpoint_automated_full_field_diff_report: schema_and_snapshot_mismatches: 0, historical_12_events_field_by_field_mismatches: 0 | REG-01 [req_etk_v17_reg01_9f8a2c11]: 244,800 trigger, 280K+10K openai/gpt-6.1-sol ($1.27) -> anthropic/claude-sonnet-5.5 ($0.66), saves $0.61 (PASS) | REG-02 [req_etk_v17_reg02_4b3d8e22]: 180,000 trigger, 210K+8K x-ai/grok-4.7 ($0.936) -> anthropic/claude-sonnet-5.5 ($0.500), saves $0.436 (PASS) | REG-03 [req_etk_v17_reg03_7c1e5a33]: 90,000 trigger, 105K+2K anthropic/claude-haiku-5.5 ($0.0575) -> openai/gpt-6-luna ($0.0115), saves $0.046 (PASS) | REG-04 [req_etk_v17_reg04_2d9f4b44]: 28,800 trigger, 35K+2K stays on qwen/qwen-3.7-flash 32K-256K tier (0.0258 CNY vs 0.0334 CNY, Tier-2 precedence) (PASS) | REG-05 [req_etk_v17_reg05_8e6a1c55]: 230,400 trigger, 260K+10K qwen/qwen-3.7-flash (0.360 CNY) -> qwen/qwen-3.8-flash 0-1M flat (0.235 CNY, FX 1 USD = 7.12 CNY), saving 34.72% per call & 38.54% on 80/20 blended rate (1.18 vs 1.92 CNY/1M) (PASS).

Etuki v37 Directories:Home Docs (7-Category)Enterprise & B2B Bill Audit TCO Calculator Merkle Proofs Pricing & 7d Trial

About Terms 14-Day Refund Policy Privacy verify-etuki.py

Enterprise Partnerships, E3 Bill Pilots & Provider Onboarding

E3 Design Partner Pilot (Free Assisted Audit)

Provider Benchmark Telemetry ($500–$1,500/mo)

VC & Accelerator Portfolio FinOps Perks

Self-Hosted Gate, Custom PO & MCP Integration