.agents/skills/add-model-price/references/model-audit-memory.md
This file is an optional snapshot of the latest automated audit whose per-model results add useful context for a future run. It is orientation only; reconfirm every price and tier against official provider sources before making a change or reporting a row as confirmed.
The audit agent may replace the snapshot below with its complete current table. Keep only one snapshot, never append an unbounded run history, never persist a partial set of checked models, and do not update this file only to refresh the date.
Audit date: 2026-07-23
All prices listed as $X / MTok (per million tokens). Per-token JSON values: divide by 1,000,000.
| Provider | Model / pricing entry | Pricing checked | Price confirmed | Tiering checked | Tiering correct | Change | Official source(s) | Comments |
|---|---|---|---|---|---|---|---|---|
| Anthropic | claude-fable-5 | Input $10/MTok (10e-6), Output $50/MTok (50e-6), 5m cache write $12.5/MTok (12.5e-6), 1h cache write $20/MTok (20e-6), cache read $1/MTok (1e-6) | Yes | Flat 1M context at standard pricing — no large-context tier | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | Confirmed. In flat long-context list. |
| Anthropic | claude-mythos-5 | Input $10/MTok (10e-6), Output $50/MTok (50e-6), 5m $12.5/MTok, 1h $20/MTok, read $1/MTok | Yes | Flat 1M context — no large-context tier | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | Limited availability (Project Glasswing). Same prices as Fable 5. |
| Anthropic | claude-opus-4-8 | Input $5/MTok (5e-6), Output $25/MTok (25e-6), 5m $6.25/MTok (6.25e-6), 1h $10/MTok (10e-6), read $0.50/MTok (0.5e-6) | Yes | Flat 1M context — no large-context tier | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | Fast mode at $10/$50 per input/output MTok (additional SKU). |
| Anthropic | claude-opus-4-7 | Input $5/MTok (5e-6), Output $25/MTok (25e-6), 5m $6.25/MTok, 1h $10/MTok, read $0.50/MTok | Yes | Flat 1M context — no large-context tier | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | Fast mode deprecated July 24 2026 per official page. |
| Anthropic | claude-opus-4-6 | Input $5/MTok (5e-6), Output $25/MTok (25e-6), 5m $6.25/MTok, 1h $10/MTok, read $0.50/MTok | Yes | Flat 1M context — no large-context tier | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | inference_geo: "us" adds 1.1× multiplier for this and later models. |
| Anthropic | claude-opus-4-5-20251101 | Input $5/MTok (5e-6), Output $25/MTok (25e-6), 5m $6.25/MTok, 1h $10/MTok, read $0.50/MTok | Yes | NOT on flat long-context list; no explicit large-context tier pricing published | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | "Claude Opus 4.5" is now listed on the official pricing page (confirmed July 2026). matchPattern covers both claude-opus-4-5 and claude-opus-4-5-20251101. Not on flat long-context list (flat list: Fable 5, Mythos 5, Mythos Preview, Opus 4.8/4.7/4.6, Sonnet 5, Sonnet 4.6). |
| Anthropic | claude-opus-4-1-20250805 | Input $15/MTok (15e-6), Output $75/MTok (75e-6), 5m $18.75/MTok, 1h $30/MTok, read $1.50/MTok | Yes | Deprecated model — no tiering | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Deprecated. Retained for backward pricing compatibility. |
| Anthropic | claude-opus-4-20250514 | Input $15/MTok (15e-6), Output $75/MTok (75e-6), 5m $18.75/MTok, 1h $30/MTok, read $1.50/MTok | Yes | Retired model | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Retired except on Google Cloud. |
| Anthropic | claude-sonnet-5 | Input $2/MTok (2e-6), Output $10/MTok (10e-6), 5m $2.50/MTok, 1h $4/MTok, read $0.20/MTok | Yes | Flat 1M context; introductory pricing through August 31 2026 | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | Introductory pricing confirmed through Aug 31 2026. Standard from Sep 1 2026: $3/$15, cache $3.75/$6/$0.30. File must be updated after Aug 31 2026. |
| Anthropic | claude-sonnet-4-6 | Input $3/MTok (3e-6), Output $15/MTok (15e-6), 5m $3.75/MTok, 1h $6/MTok, read $0.30/MTok | Yes | Flat 1M context — no large-context tier | Yes | None | https://platform.claude.com/docs/en/about-claude/pricing | Confirmed. |
| Anthropic | claude-sonnet-4-5-20250929 | Input $3/MTok (3e-6), Output $15/MTok (15e-6), 5m $3.75/MTok, 1h $6/MTok, read $0.30/MTok | Yes | Large Context >200K: 2× input / 1.5× output — tier in file, not explicitly published by Anthropic | No | None | https://platform.claude.com/docs/en/about-claude/pricing | Sonnet 4.5 NOT on flat list. Anthropic page does not publish per-tier pricing for this model. The Large Context tier was set when model was first added. Unresolved. |
| Anthropic | claude-sonnet-4-20250514 | Input $3/MTok (3e-6), Output $15/MTok (15e-6), 5m $3.75/MTok, 1h $6/MTok, read $0.30/MTok | Yes | Retired model | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Retired except on Bedrock and Google Cloud. |
| Anthropic | claude-haiku-4-5-20251001 | Input $1/MTok (1e-6), Output $5/MTok (5e-6), 5m $1.25/MTok (1.25e-6), 1h $2/MTok (2e-6), read $0.10/MTok (1e-7) | Yes | No large-context tier | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Confirmed. Haiku 4.5 NOT on flat long-context list. |
| Anthropic | claude-3-5-haiku-20241022 | Input $0.80/MTok (8e-7), Output $4/MTok (4e-6), 5m $1/MTok, 1h $1.60/MTok, read $0.08/MTok | Yes | Retired model | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Retired except on Bedrock and Google Cloud. |
| Anthropic | claude-3.7-sonnet-20250219 | Input $3/MTok, Output $15/MTok, cache $3.75/$6/$0.30 per MTok | No | Not on current page | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Not listed on current official pricing page. Legacy prices retained. |
| Anthropic | claude-3.5-sonnet-20241022 | Input $3/MTok, Output $15/MTok, cache $3.75/$6/$0.30 per MTok | No | Not on current page | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Not listed on current official pricing page. Legacy prices retained. |
| Anthropic | claude-3-5-sonnet-20240620 | Input $3/MTok, Output $15/MTok, cache $3.75/$6/$0.30 per MTok | No | Not on current page | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Not listed on current official pricing page. Legacy prices retained. |
| Anthropic | claude-3-opus-20240229 | Input $15/MTok, Output $75/MTok | No | Not on current page | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Legacy. Not on current pricing page. |
| Anthropic | claude-3-sonnet-20240229 | Input $3/MTok, Output $15/MTok, cache set | No | Not on current page | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Legacy. Not on current pricing page. |
| Anthropic | claude-3-haiku-20240307 | Input $0.25/MTok, Output $1.25/MTok | No | Not on current page | Not applicable | None | https://platform.claude.com/docs/en/about-claude/pricing | Legacy. Not on current pricing page. |
| OpenAI | gpt-5.6-sol | Input $5/MTok (5e-6), Cached $0.50/MTok (0.5e-6), Output $30/MTok (30e-6) | Yes | Large Context (>272K): input $10/MTok, cached $1/MTok, output $45/MTok | Yes | None | https://developers.openai.com/api/docs/pricing | Reasoning model. 272K threshold unique to gpt-5.6 family. |
| OpenAI | gpt-5.6-terra | Input $2.50/MTok (2.5e-6), Cached $0.25/MTok (0.25e-6), Output $15/MTok (15e-6) | Yes | Large Context (>272K): input $5/MTok, cached $0.50/MTok, output $22.50/MTok | Yes | None | https://developers.openai.com/api/docs/pricing | Reasoning model. |
| OpenAI | gpt-5.6-luna | Input $1/MTok (1e-6), Cached $0.10/MTok (0.1e-6), Output $6/MTok (6e-6) | Yes | Large Context (>272K): input $2/MTok, cached $0.20/MTok, output $9/MTok | Yes | None | https://developers.openai.com/api/docs/pricing | Reasoning model. |
| OpenAI | gpt-5.5-2026-04-23 (also matches gpt-5.5) | Input $5/MTok (5e-6), Cached $0.50/MTok (0.5e-6), Output $30/MTok (30e-6) | Yes | No large-context tier in file; large context mentioned by OpenAI but threshold not confirmed | No | None | https://developers.openai.com/api/docs/pricing | Reasoning model. matchPattern covers plain gpt-5.5 (dated suffix is optional). Large-context threshold unresolved. |
| OpenAI | gpt-5.5-pro-2026-04-23 (also matches gpt-5.5-pro) | Input $30/MTok (30e-6), Output $180/MTok (180e-6); no cache | Yes | No tiering in file | Not applicable | None | https://developers.openai.com/api/docs/pricing | Reasoning model; no cached input pricing. matchPattern covers plain gpt-5.5-pro. |
| OpenAI | gpt-5.4 | Input $2.50/MTok (2.5e-6), Cached $0.25/MTok (0.25e-6), Output $15/MTok (15e-6) | Yes | No large-context tier confirmed | No | None | https://developers.openai.com/api/docs/pricing | Reasoning model. Large-context threshold unresolved. |
| OpenAI | gpt-5.4-2026-03-05 | Input $2.50/MTok, Cached $0.25/MTok, Output $15/MTok | Yes | No tiering | Not applicable | None | https://developers.openai.com/api/docs/pricing | Dated snapshot for gpt-5.4. |
| OpenAI | gpt-5.4-pro | Input $30/MTok (30e-6), Output $180/MTok (180e-6); no cache | Yes | No tiering | Not applicable | None | https://developers.openai.com/api/docs/pricing | Reasoning model; no cached input pricing. |
| OpenAI | gpt-5.4-mini | Input $0.75/MTok (0.75e-6), Cached $0.075/MTok (0.075e-6), Output $4.50/MTok (4.5e-6) | Yes | No tiering | Not applicable | None | https://developers.openai.com/api/docs/pricing | Non-reasoning model. Confirmed. |
| OpenAI | gpt-5.4-nano | Input $0.20/MTok (0.2e-6), Cached $0.02/MTok (0.02e-6), Output $1.25/MTok (1.25e-6) | Yes | No tiering | Not applicable | None | https://developers.openai.com/api/docs/pricing | Non-reasoning model. Confirmed. |
| OpenAI | gpt-5-chat-latest | Input $1.25/MTok (1.25e-6), Cached $0.125/MTok (1.25e-7), Output $10/MTok (10e-6) | Yes | No provider tiering | Not applicable | None | https://developers.openai.com/api/docs/models/gpt-5-chat-latest | Confirmed via specific model page in July 2026 audit. |
| gemini-2.5-flash | Input $0.30/MTok (3e-7), Audio $1/MTok (1e-6), Output $2.50/MTok (2.5e-6), Cache read $0.03/MTok (3e-8) | Yes | No large-context tier; single tier confirmed | Yes | None | https://ai.google.dev/pricing | Cache read = 10% of standard input. Confirmed. | |
| gemini-2.5-flash-lite | Input $0.10/MTok (1e-7), Audio $0.30/MTok (3e-7), Output $0.40/MTok (4e-7), Cache read $0.01/MTok (1e-8) | Yes | No large-context tier | Yes | None | https://ai.google.dev/pricing | Cache read = 10% of input. Confirmed. | |
| gemini-2.5-pro | Input $1.25/MTok (1.25e-6) ≤200K, $2.50/MTok >200K; Output $10/MTok ≤200K, $15/MTok >200K; Cache read $0.125/MTok ≤200K | Yes | Large Context (>200K) confirmed | Yes | None | https://ai.google.dev/pricing | Two tiers confirmed. Cache = 10% of input at each tier. | |
| gemini-3.5-flash | Input $1.50/MTok (1.5e-6), Output $9.00/MTok (9e-6), Cache read $0.15/MTok (1.5e-7) | Yes | No large-context tier | Yes | None | https://ai.google.dev/pricing | Cache = 10% of input. Confirmed. | |
| gemini-3.1-flash-lite | Input $0.25/MTok (2.5e-7), Audio $0.50/MTok (5e-7), Output $1.50/MTok (1.5e-6), Cache read $0.025/MTok (2.5e-8) | Yes | No large-context tier | Yes | None | https://ai.google.dev/pricing | Cache = 10% of text input. Confirmed on AI Studio page. | |
| gemini-3.1-flash-lite-preview | Input $0.25/MTok, Output $1.50/MTok (same as GA) | No | No large-context tier | Not applicable | None | https://ai.google.dev/pricing | Preview variant; same prices as GA version in file; not separately listed on official page. | |
| gemini-3.1-pro-preview | Input $2/MTok (2e-6) ≤200K, $4/MTok >200K; Output $12/MTok ≤200K, $18/MTok >200K | Yes | Large Context (>200K) confirmed | Yes | None | https://ai.google.dev/pricing | Two tiers confirmed on AI Studio page. | |
| gemini-3-flash-preview | Input $0.50/MTok (5e-7), Audio $1/MTok (1e-6), Output $3/MTok (3e-6), Cache read $0.05/MTok (5e-8) | Yes | No large-context tier | Yes | None | https://ai.google.dev/pricing | Confirmed on AI Studio page. | |
| gemini-3-pro-preview | Input $2/MTok (2e-6) ≤200K, $4/MTok >200K; Output $12/MTok ≤200K, $18/MTok >200K | No | Large Context (>200K) set in file | Not applicable | None | https://ai.google.dev/pricing | Not listed on current AI Studio pricing page. Existing prices retained. | |
| gemini-2.0-flash | Input $0.10/MTok (1e-7), Output $0.40/MTok (4e-7) | No | Deprecated (shut down June 1, 2026) | Not applicable | None | https://ai.google.dev/pricing | Officially shut down June 1 2026. Existing prices retained for backward compatibility. | |
| gemini-2.0-flash-001 | Same as gemini-2.0-flash | No | Deprecated (shut down June 1, 2026) | Not applicable | None | https://ai.google.dev/pricing | Officially shut down. Existing prices retained for backward compatibility. | |
| gemini-3.6-flash | Input $1.50/MTok (1.5e-6), Output $7.50/MTok (7.5e-6), Cache read $0.15/MTok (1.5e-7) | Yes | No large-context tier on official page | Yes | None | https://ai.google.dev/pricing | Confirmed on official AI Studio pricing page. Output ($7.50) is lower than gemini-3.5-flash ($9.00) — correct per official page. | |
| gemini-3.5-flash-lite | Input $0.30/MTok (3e-7), Output $2.50/MTok (2.5e-6) | Yes | No large-context tier | Yes | Updated | https://ai.google.dev/pricing | Context caching is "Not available" per official page (all tiers: Standard, Batch, Flex, Priority). Cache keys removed from pricing entry on 2026-07-23. Do NOT add cache pricing for this model without explicit official evidence. |
gpt-5.3-codex — Confirmed in OpenAI models list, described as "most agentic coding model". Not in selectable models or pricing file. Not adding without explicit official pricing page confirmation.
gpt-5.5 / gpt-5.4 large-context tiers — OpenAI page mentions extended context with doubled rates for these models, but the exact tier threshold (possibly 200K) is not confirmed. No Large Context tiers in the file for these models. Future audits should verify.
claude-sonnet-4-5-20250929 Large Context tier — The file has a Large Context (>200K) tier for this model. The official Anthropic page does not explicitly publish per-tier pricing for this model separately. Future audits should verify.
claude-sonnet-5 introductory pricing — Introductory pricing ($2/$10/MTok) expires August 31, 2026. Standard pricing ($3/$15/MTok, cache $3.75/$6/$0.30) takes effect September 1, 2026. The pricing file must be updated before or on September 1, 2026.