Model Almanac AI API Price Index: changeshttps://modelalmanac.com/ai-api-prices/Price changes for AI model APIs, checked against official pricing pages.en OpenAI gpt-6.1-sol: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-OpenAI-gpt-6.1-sol-changedMon, 02 Nov 2026 21:03:01 GMT OpenAI gpt-6.1-terra: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-OpenAI-gpt-6.1-terra-changedMon, 02 Nov 2026 21:03:01 GMT OpenAI gpt-6-luna: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-OpenAI-gpt-6-luna-changedMon, 02 Nov 2026 21:03:01 GMT OpenAI gpt-6-astra: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-OpenAI-gpt-6-astra-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Fable 5.1: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Fable 5.1-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Opus 5.5: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Opus 5.5-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Sonnet 5.5: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Sonnet 5.5-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Haiku 5.5: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Haiku 5.5-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Fable 5: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Fable 5-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Opus 5: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Opus 5-changedMon, 02 Nov 2026 21:03:01 GMT Anthropic Claude Sonnet 5: price details updated per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T21:03:01Z-Anthropic-Claude Sonnet 5-changedMon, 02 Nov 2026 21:03:01 GMT OpenAI gpt-6-luna added: input $0.10, output $0.50 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-OpenAI-gpt-6-luna-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Sonnet 5 added: input $2.00, output $10.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Sonnet 5-newMon, 02 Nov 2026 20:24:21 GMT OpenAI gpt-6.1-terra added: input $1.00, output $5.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-OpenAI-gpt-6.1-terra-newMon, 02 Nov 2026 20:24:21 GMT xAI grok-4.7 added: input $2.00, output $6.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-xAI-grok-4.7-newMon, 02 Nov 2026 20:24:21 GMT OpenAI gpt-6.1-sol added: input $2.00, output $10.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-OpenAI-gpt-6.1-sol-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Fable 5 added: input $10.00, output $50.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Fable 5-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Fable 5.1 added: input $10.00, output $50.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Fable 5.1-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Haiku 5.5 added: input $0.10, output $0.50 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Haiku 5.5-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Opus 5 added: input $5.00, output $25.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Opus 5-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Opus 5.5 added: input $4.00, output $20.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Opus 5.5-newMon, 02 Nov 2026 20:24:21 GMT Anthropic Claude Sonnet 5.5 added: input $2.00, output $10.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Anthropic-Claude Sonnet 5.5-newMon, 02 Nov 2026 20:24:21 GMT DeepSeek deepseek-flash added: input $0.30, output $1.20 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-DeepSeek-deepseek-flash-newMon, 02 Nov 2026 20:24:21 GMT Google gemini-3.5-flash-lite added: input $0.30, output $2.50 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Google-gemini-3.5-flash-lite-newMon, 02 Nov 2026 20:24:21 GMT Google gemini-3.6-flash added: input $0.75, output $3.75 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-Google-gemini-3.6-flash-newMon, 02 Nov 2026 20:24:21 GMT OpenAI gpt-6-astra added: input $10.00, output $50.00 per 1M tokenshttps://modelalmanac.com/ai-api-prices/2026-11-02T20:24:21Z-OpenAI-gpt-6-astra-newMon, 02 Nov 2026 20:24:21 GMT