Model API prices
USD per 1M tokens, standard tier. Batch/flex tiers are usually ~50% cheaper — see each source.
| Model | Vendor | Input /1M | Cached /1M | Output /1M | Notes | Verified |
|---|---|---|---|---|---|---|
| Claude Fable 5.1 | Anthropic | $10 | — | $50 | source · 2026-10-13 verified | |
| Claude Opus 5.5 | Anthropic | $4 | $0.2 | $20 | Cache-read figure parsed from page layout; confirm | source · 2026-10-13 verified |
| Claude Sonnet 5.5 | Anthropic | $2 | — | $10 | source · 2026-10-13 verified | |
| Claude Haiku 5.5 | Anthropic | $0.5 | — | $2.5 | Prompts ≤100K tokens | source · 2026-10-13 verified |
| Claude Opus 5 (legacy) | Anthropic | $5 | $0.5 | $25 | source · 2026-10-13 verified | |
| Claude Sonnet 4.6 (legacy) | Anthropic | $3 | $0.3 | $15 | source · 2026-10-13 verified | |
| GPT-6 Astra | OpenAI | $10 | $1 | $50 | ≤272K context | source · 2026-10-13 verified |
| GPT-6.1 Sol | OpenAI | $2 | $0.1 | $10 | ≤272K context | source · 2026-10-13 verified |
| GPT-6 Luna | OpenAI | $0.1 | $0.01 | $0.5 | source · 2026-10-13 verified | |
| GPT-5.6 Sol | OpenAI | $4 | $0.4 | $20 | Promotional pricing at least through Nov 21, 2026 | source · 2026-10-13 verified |
| GPT-5.3 Codex | OpenAI | $1.75 | $0.175 | $14 | source · 2026-10-13 verified | |
| Gemini 4 Argon | $2 | $0.1 | $10 | Doubles to $4/$20 on Dec 1, 2026 | source · 2026-10-13 verified | |
| Gemini 3.8 Flash | $0.75 | $0.075 | $3.75 | Doubles to $1.50/$7.50 on Jan 1, 2027 | source · 2026-10-13 verified | |
| Gemini 3.1 Pro Preview | $2 | $0.2 | $12 | Prompts ≤200K | source · 2026-10-13 verified | |
| Gemini 3.5 Flash-Lite | $0.3 | $0.03 | $2.5 | source · 2026-10-13 verified | ||
| Grok 4.7 | xAI | $2 | $0.5 | $6 | <200K prompt tokens | source · 2026-10-13 verified |
| Grok Build 0.1 | xAI | $1 | $0.2 | $2 | <200K prompt tokens | source · 2026-10-13 verified |
| Grok 4.3 | xAI | $1.25 | $0.2 | $2.5 | <200K prompt tokens | source · 2026-10-13 verified |