Frontier models
The most capable models available, served only by their makers and a few cloud partners. Pricing is per million tokens, with output tokens costing several times more than input. Pick the smallest tier that passes your evaluation; the price gap between tiers is large.
Claude Anthropic checked 2026-10-23
Anthropic's models: one family from small and fast to frontier reasoning, all with a 1M-token context. APIBedrockVertex AIAzure
| Model | Context | $ in / 1M | $ out / 1M | Inputs | Status |
|---|---|---|---|---|---|
Claude Fable 5.1
claude-fable-5-1
For the hardest reasoning and long-horizon agent work. Thinking always on. |
1M | $10 | $50 | text, image | current |
Claude Opus 5.5
claude-opus-5-5
Anthropic's recommended starting point for most workloads. |
1M | $4 | $20 | text, image | current |
Claude Sonnet 5.5
claude-sonnet-5-5
|
1M | $2 | $10 | text, image | current |
Claude Haiku 5.5
claude-haiku-5-5
Prompts over 100K tokens are billed at $0.50 / $2.50. |
1M | $0.1 | $0.5 | text, image | current |
Claude Opus 5
claude-opus-5
Still available; Anthropic recommends moving to Opus 5.5, which is cheaper. |
1M | $5 | $25 | text, image | legacy |
GPT OpenAI checked 2026-10-23
OpenAI's GPT-6 line: a clear three-tier price ladder over a 1M-token context. APIBedrockAzure
| Model | Context | $ in / 1M | $ out / 1M | Inputs | Status |
|---|---|---|---|---|---|
GPT-6 Astra
gpt-6-astra
Over 272K input tokens: $20 / $75. |
1.05M | $10 | $50 | text, image | current |
GPT-6.1 Sol
gpt-6.1-sol
Over 272K input tokens: $4 / $15. |
1.05M | $2 | $10 | text, image | current |
GPT-6 Luna
gpt-6-luna
Over 272K input tokens: $0.20 / $0.75. |
1.05M | $0.1 | $0.5 | text, image | current |
GPT-5.6 Sol
gpt-5.6-sol
Previous generation. OpenAI does not call it legacy. The price shown is promotional, 'at least through November 21, 2026'; the price after that is not published. |
1.05M | $4 | $20 | text, image | legacy |
Gemini Google checked 2026-10-23
Google's models: the broadest native inputs, including audio, video and PDF. APIVertex AI
| Model | Context | $ in / 1M | $ out / 1M | Inputs | Status |
|---|---|---|---|---|---|
Gemini 4 Argon
gemini-4-argon
Price valid through 2026-11-30; $4 / $20 from 2026-12-01. |
1.04858M | $2 | $10 | text, image, video, audio, pdf | current |
Gemini 3.8 Flash
gemini-3.8-flash
Price valid through 2026-12-31; $1.50 / $7.50 from 2027-01-01. |
1.04858M | $0.75 | $3.75 | text, image, video, audio, pdf | current |
Gemini 3.5 Flash-Lite
gemini-3.5-flash-lite
|
1.04858M | $0.3 | $2.5 | text, image, video, audio, pdf | current |
Gemini 3.1 Pro (preview)
gemini-3.1-pro-preview
Previous generation, and still a preview. Google gives no shutdown date. Over 200K prompt tokens: $4 / $18. |
1.04858M | $2 | $12 | text, image, video, audio, pdf | legacy |
Prices are list prices in USD per million tokens at the standard tier, before batch or prompt-caching discounts and before any long-context surcharge. Cloud-partner prices (Bedrock, Vertex AI, Azure) can differ. "—" means not verified from the provider's own pages.